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Founded PSPDFKit in 2011 and ran it for a decade. Came back from a break to work on AI agents — the OpenClaw project, and OpenAI, joined in February 2026. Writes at steipete.me.

• CodexBar — Show usage stats for OpenAI Codex and Claude Code, without having to login.

  AnthropicOpenAIRelated

Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• Quoting voxium

  It has been half a month since I started a new role at a big company. Nobody knows anything here. The specs, code, tests, PRDs, tickets, resolution of those tickets, reports, etc., everything is made by Claude Code. Nob…

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Writes Don't Worry About the Vase, a near-daily account of what is happening in AI and what they think it means. Former Magic: the Gathering pro and trader; unusually willing to put a number on a belief and to grade their own past calls.

• Better Call Sol Or Better Yet Claude or Astra

  What should your AI lawyer do for you?

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Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.

• lavish-axi — HTML is the new markdown. Lavish is the new editor for your HTML artifacts.

  Commitsfeat: add exclusive visible poll listeners (#358) · fix(server): record startup and runtime failures (#357) · fix(server): make live-review failures recoverable (#353)

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Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• Scrum made sense at companies/teams that shipped a new version of their product every 2-3 months (or less frequent) As soon as a team got to shipping daily or had CD: they only held teams back Most startups + Big Tech moved on a decade+ ago, legacy companies remained only
  Quoting@forgebitzit's funny how scrum masters completely disappeared and no one really cared

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• This is SO interesting because the OS market share for developers seems to be the inverse, based on devs in my “bubble” (those at startups + Big Tech) #1 MacOS #2 Linux #3 Windows I ran a survey here + on LI with 4,000 responses each - it’s what I mean by “bubble”
  Quoting@dhhThe age of agents belongs to Linux!

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Economics professor at the University of California, Berkeley and a former Deputy Assistant Secretary of the US Treasury. Author of Slouching Towards Utopia and writer of the Grasping Reality newsletter.

• A tinkerer recovered Claude’s true usage limits from a suspiciously precise decimal like 0.16327272727272726. This is very useful, because Anthropic really does not want to give me any useful information about the quantities of tokens my $20/month Claude Pro subscription is offering me before I run up against a limit and have to either switch out the models or pay API pay-as-you-go pricing: **CROSSPOST: SHELLAC: Suspiciously Precise Floats, or, How I Got Claude’s Real Limits** Two... 1/

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Economist; former chief economist of the International Monetary Fund.

• Reason for specifically citing open weight (and therefore Chinese LLMs, but not only Chinese) is that, even if they have built-in guardrails, somebody with the relevant knowledge can go in and remove them. In principle, harder to do with Anthropic or Open AI LLMs.
  Quoting@ojblanchard1A worrisome thought during the night: What Ted Kaczynski would have done, if he had had access to open weight chinese LLMs.

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Writes Don't Worry About the Vase, a near-daily account of what is happening in AI and what they think it means. Former Magic: the Gathering pro and trader; unusually willing to put a number on a belief and to grade their own past calls.

• Anthropic Looks At Some Of Its Alignment Problems

  Anthropic has given us its assessment of four ‘recent cybersecurity incidents’ involving Claude that happened during cybersecurity evaluations, three of which were previously known.

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Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• If you want to see an example on how having the very best AI model and harness doesn’t result in better/faster execution - in fact it slows you; It took the Claude Code team 16 months LONGER (!!) to add support for AGENTS.md than OpenCode & Codex, 12 more vs Cursor
  Quoting@trq212We're adding support for AGENTS.md to Claude Code. Starting today in version 2.1.277, if there is no CLAUDE.md in a folder, Claude will check for and use AGENTS.md. You can toggle this behavior in /config.

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Writer and developer. He runs the Latent Space newsletter and podcast about AI engineering, and writes essays on software and careers at swyx.io.

• skills — Agent skills for Claude Code and other AI agents

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Technology writer of Spyglass, a newsletter about technology and media. Previously a reporter at TechCrunch and an investor at GV.

• 🫟 Inklings 📆 September 18, 2026 • Meta's Camera-Less Glasses • Apple's Surveillance • Claude Unifies • Prime Bundles • Dario Writes • Bond, Jack Bond

  spyglass.org

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Austrian developer. Created the libGDX game framework, and more recently the pi coding agent, which moved with them to Earendil — Armin Ronacher's company — in April 2026. Writes at mariozechner.at.

• and all it took was to add a proper extension system to claude code (sorry thariq, could not resist :D)
  Quoting@trq212We're adding support for AGENTS.md to Claude Code. Starting today in version 2.1.277, if there is no CLAUDE.md in a folder, Claude will check for and use AGENTS.md. You can toggle this behavior in /config.

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Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• Quoting Thariq Shihipar

  We're adding support for AGENTS.md to Claude Code. Starting today in version 2.1.277, if there is no CLAUDE.md in a folder, Claude will check for and use AGENTS.md. AGENTS.md support is built off of Claude Code mods, ou…

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Technology writer of Spyglass, a newsletter about technology and media. Previously a reporter at TechCrunch and an investor at GV.

• Inklings #026 📧

  Meta's Camera-Less Glasses • Apple's Surveillance • Claude Unifies • Prime Bundles • Dario Writes • Bond, Jack Bond

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Machine-learning researcher on open language models; writes the Interconnects newsletter and the RLHF Book, after leading post-training at Ai2.

• With the latest external hack of OpenAI via Claude, closed models continue to be the tip of the iceberg on AI risks, not open models. They have been 1) much easier to get started with, 2) more capable & 3) shipped with leaky safeguards. Finetuning open models to specific attacks is harder.

  AnthropicOpenAIRelated

Security technologist and author of books including Applied Cryptography and Data and Goliath; writes the Schneier on Security blog and the monthly Crypto-Gram newsletter.

• Are AIs Still Struggling with CAPTCHAs?

  Anthropic’s recent security-incident document contains a bit about how CAPTCHAs are still frustrating Claude. In the transcript, the Claude model that is so powerful that Anthropic is gatekeeping access to it appeared t…

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Statistician and software engineer who writes R packages for reproducible research and publishing, including knitr, bookdown and blogdown.

• yihui.org — Personal website and discussion board of Yihui Xie | 谢益辉

  CommitsDocument shell engine startup files and the engine.env option (yihui/knitr#1762) · Document webshot2 and the screenshot chunk options (yihui/knitr#2315) · document the fig.topcaption chunk option (now works for LaTeX to…

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Builds developer tools — SST, and now OpenCode at Anomaly. Posts constantly on x.com and writes almost never; the blog stopped in 2021.

• imagine working at anthropic and being blindsided by this
  Quoting@PolymarketMoneyBREAKING: Staff at OpenAI and Anthropic were reportedly “blindsided” by their CEOs’ public calls to slow AI development.

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Author and clean-energy analyst who writes on solar cost curves.

• Interesting 'RSI' data. However, it tells us nothing about the extent to which Claude is actually accelerating the pace of progress on AI. In the Mythos 5.1 system card Anthropic stated that AI tools progress had been essential to maintaining their current rate of progress.
  Quoting@AnthropicAIAI systems are getting more powerful, and they're increasingly being used to build the next version of themselves. We want to illuminate that progress for the public. Today, we're sharing three measurements that help track AI development: 1. How much AI R&D is done by AI. 2. How well AI agents are…

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Standards editor known as Hixie; edited the HTML and WHATWG living standards for many years and worked on Flutter at Google.

• contraptions — Tools to connect public services like GitHub and Discord

  CommitsAdd a script to carry Claude's session list between accounts · Add Claude and Codex session cost reports

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Creator of Claude Code at Anthropic.

• Projects have changed not only how I interact with Claude but how I code. I stopped managing sessions. I just send thoughts as they come, Claude splits them into threads, and the project remembers how I work. It's where I do a ton of my coding now. [screenshot: my actual prompts for claude code cli yesterday]
  Quoting@ClaudeDevsToday we're rolling out Projects in Claude Code on desktop and web. A project is one conversation with Claude. It splits the work into threads itself, runs them as parallel cloud sessions, passes context between them, and keeps going when you leave. In beta for select users.

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Systems and developer-tools engineer at Cloudflare as of 2026, on durable infrastructure for AI agents; worked on React and PartyKit before that. Writes at sunilpai.dev.

• unstable government: jev + claude type a terrible law. claude invents reactions and directs the set pieces. jev decides how each of 40 citizens responds. the town sim plays those choices out, then prints the disaster as tomorrow’s front page. fun.

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Venture capitalist and founder of Theory Ventures, previously a partner at Redpoint. Writes a near-daily blog on startups, SaaS metrics, data and AI.

• The Harness Margin Opportunity

  A UC Berkeley study finds the harness sets the price of an answer : GPT-5.6 Sol costs 71% less on Pi than on Claude Code, the same model returning the same result, & none of the 42 harness comparisons shows a statistica…

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Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• So many people in the replies saying it's overcomplicated, and no proof that this works And then plenty other folks saying that at their startup/company they built this the below pretty much, and then a few new things Different speedlanes when it comes to agents + pipelines
  Quoting@GergelyOroszHere's what OpenAI's agentic software factory looks like, today. Details: https://t.co/UUZufLxG2r (thanks to all the OpenAI folks who explained how it works! And Perf Factory looks especially interesting to me)

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British historian, Professor of Global History at the University of Oxford; author of The Silk Roads and The Earth Transformed.

• I’ve written about Claude, how’s it’s been used around the world and why the shrill warnings about the end of humanity are (perhaps) not quite all they seem
  Quoting@unherdClaude: tyranny’s little helper, by @peterfrankopan The Houthis — or their affiliates or hired helpers — effectively used Claude Code as a substitute for software engineers, getting it to help develop guidance, navigation and control systems; integrate an open-source autopilot into a flight compute…

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Professor of economics at George Mason University and Bartley J. Madden Chair at the Mercatus Center. Co-writes the blog Marginal Revolution and co-authors the textbook Modern Principles of Economics with Tyler Cowen.

• Monitoring COT and communication between agents is also getting more difficult as networks get bigger and models become more advanced, according to @ConnorTabarrok, policy lead at Equistamp, a startup that provides safety evaluations for AI projects.

  itbrew.com

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Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• Claude Cowork and chat are now one Claude

  In hopefully good news for anyone who, like me, was increasingly confused at Cowork v.s. Claude v.s. Claude Code: Starting today, Claude Cowork and chat are merging into one Claude. Bring a quick question, or hand over…

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Co-founder, chairman and chief investment officer of Ritholtz Wealth Management. Hosts the Masters in Business podcast for Bloomberg and wrote How NOT to Invest.

• At The Money: Investing in Founder-Led Companies

  At The Money: At The Money: Investing in Founder-Led Companies Michael Monahan (September 16, 2026) How can ordinary investors access funds of companies led by founders? Enter the Founders 100 ETF (FFF). Full transcript…

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Creator of Claude Code at Anthropic.

• Also today: Claude Docs, Claude Slides, and Claude Design are in every conversation. Ask Claude for a presentation and you get one you can open, edit, and export as PowerPoint or PDF. Same for a document or a design. There's no separate tool to navigate to. They're just in the chat.
  Quoting@claudeaiYou can also now make decks, docs, and designs in your conversation. Draft the one-pager in Claude Docs, turn it into a deck with Claude Slides, and mock up a matching visual in Claude Design, all from one place.

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Writer and novelist. Publishes essays and book notes at nateliason.com; author of the novel Husk and of Crypto Confidential.

• Who should come speak to the @alpha_founders students?

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Writer of Lenny's Newsletter and host of Lenny's Podcast, covering product, growth and career in tech. Previously a product lead at Airbnb. Also an angel investor and advisor.

• 60+ creative growth ideas Everyone's running the same growth playbook: high-production launch videos, paid influencers, AEO, social, maybe some (poorly attended) events. Your competitors are in the same channels competing for the same eyeballs. But attention goes to what people don't see coming. The unexpected gets shared for free, remembered for months, and usually costs less than one week of ad spend. @TomOrbach has dedicated his life to collecting creative growth ideas that worked. Every time he sees a startup do something clever, it goes on the list. Here are his 64 best, sorted by what y…

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Writes Don't Worry About the Vase, a near-daily account of what is happening in AI and what they think it means. Former Magic: the Gathering pro and trader; unusually willing to put a number on a belief and to grade their own past calls.

• The Bad Guy With An AI Named Claude

  A lot of bad guys try to use Claude to do bad things.

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Co-founder of Y Combinator and Viaweb; essayist at paulgraham.com.

• A founder of a startup I funded had these brass plaques made to put up over his and his cofounder's desks. (He's Build Stuff, she's Talk to Users.)

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Criminal defence lawyer in New York; writes Simple Justice, mostly about how criminal law works in practice rather than in theory.

• Tuesday Talk*: AI, AI, AI, The Hoax

  The CEOs of the major Artificial Intelligence companies say it’s a potential existential threat to humanity. The president’s statement followed a weekend essay from Dario Amodei, the chief executive of Anthropic, callin…

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Writer and former McKinsey/BCG strategy consultant; author of The Pathless Path and Good Work, about leaving the default career track. Publishes the Boundless newsletter and podcast.

• am doing a basic SOW with a client now and they are using an AI contract solution (Linksquares) and it is perhaps the most exhaustive and detailed and aggressive SOW ive ever seen - so of course im using claude to push back on some of the stuff. which means its now two agents figuring out legal negotiation over things that probably should just be done based on more basic terms

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Writer and novelist. Publishes essays and book notes at nateliason.com; author of the novel Husk and of Crypto Confidential.

• Founders School: Teenager GDP
  Quoting@sab8aGreat examples of North Star metrics: – Uber: Rides taken – Airbnb: Nights booked – Lovable: Daily active apps – Plaid: Bank accounts linked – Duolingo: Daily active users – ChatGPT: Retained active users – Loom: Videos created that get viewed – Cursor: Paid users coding 5 days/week – Gamma: Presen…

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Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.

• BlueskyAdded a new runway feature to signed.com to sort which of my portfolio companies are facing cash crunches. (As a side note, always fascinated by startups who run out of cash and haven't talked to their investors about it. That's what they're there for, to help!)

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• x.comAdded a new runway feature to @signedco to sort which of my portfolio companies are facing cash crunches. (As a side note, always fascinated by startups who run out of cash and haven't talked to their investors about it. That's what they're there for, to help!)

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Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• The contagion of fear

  Bryan Cantrill responds to the tweet by former Anthropic employee Jacob Coxon confirming that many Anthropic researchers believe AI "could kill us all by the end of the decade". Bryan shares a story of his own youthful…

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Writer of MacSparky and author of the MacSparky Field Guides on Apple productivity software. A lawyer for 30 years before going full-time on the site, he co-hosts the Mac Power Users and Focused podcasts.

• ShortPhotograph the Page and Hand It to Claude

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Creator of Claude Code at Anthropic.

• Claude Mods are landing now. Someone already built a Tetris-in-Claude mod 🤯 See issue for the latest community update, technical details, and more cool demos

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Security technologist and author of books including Applied Cryptography and Data and Goliath; writes the Schneier on Security blog and the monthly Crypto-Gram newsletter.

• Using AI for Weapons Development

  Last week, Anthropic released a long and detailed document describing current misuses of their Claude models. I’m still reading it, but I wanted to flag this: We identified a cell of threat actors based in northern Yeme…

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Professor of economics at George Mason University and Bartley J. Madden Chair at the Mercatus Center. Co-writes the blog Marginal Revolution and co-authors the textbook Modern Principles of Economics with Tyler Cowen.

• Global AI stocks fell today. Entirely consistent with my view that calls for AI safety are not an attempt at "regulatory capture" and entirely inconsistent with the supposedly cynic-sophisticated view that AI fears are all 4D chess moves for higher revenue. On stocks falling. Here is Claude: The public tape moved hard this morning. Global AI stocks fell on Monday, with SoftBank down sharply along with chip stocks from SK Hynix to ASML, Micron and Intel. SoftBank closed nearly 11% lower in Japan, the Kospi sank 3.3% on a 6.4% drop in SK Hynix, and ASML was off 6% in Europe. In the US, Marvell,…

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Managing partner at Ritholtz Wealth Management. Writes the blog The Irrelevant Investor and co-hosts the Animal Spirits podcast with Ben Carlson.

• Talk Your Book: Why Aren't There More IPOs?

  Today's Talk Your Book is sponsored by VanEck: To learn more about VanEck click here: vaneck.com/PrivateMarketsCompound On today’s show, we discuss: Why 2021 produced disconnected valuations for late-stage startups How…

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Programmer, teacher and speaker; long-time Microsoft developer-community figure, host of the Hanselminutes podcast and author of the hanselman.com blog.

• I wonder if the call for AI to slow down happened because they asked it and claude was like you're right to push back

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General partner at Andreessen Horowitz and author of The Cold Start Problem. Previously led rider growth teams at Uber; has blogged on growth, network effects and marketplaces since 2007.

• current homelab setup for local AI experimentation: - hermes box hosted on a Framework Desktop Mainboard AI Max+ 395 - 5090 eGPU running Qwen 3.8 27B for fast tok/s LLM use - sometimes 150+ tok/s - 2x DGX Spark: running Deepseek v4 Flash 0731 - better but slower model - pi 5 for monitoring - Mac mini as a dev box - use Herdr and ohmypi/codex/claude depending on the use case - housed in a 10" DeskPi mini rack (mostly) Hermes is defaulted to local AI but with a homegrown routing plugin hitting a small low TTFT model (Arch-Router) to decide whether to go local or upgrade to cloud/frontier. Tryin…

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Writer and novelist. Publishes essays and book notes at nateliason.com; author of the novel Husk and of Crypto Confidential.

• We need video editors! We have hours of Founders School content from week one and our Head of Media is looking for two people to join his team. (Both remote!) A dedicated long form editor: https://t.co/MmENSJgeam And a dedicated shorts editor:

  founders.school

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Co-founder of Y Combinator and Viaweb; essayist at paulgraham.com.

• Making Startups Powerful:

  paulgraham.com

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Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.

• It took writing a programming book, speaking at 20+ confs, leading eng at a billion-dollar startup, having some OSS projects people use, getting invited on podcasts, starting a company, hanging out with smart / successful people who seemed to think I knew what I was doing … … before accepting maybe it wasn’t all a fluke
  Quoting@threepointoneyou don’t understand, i’m the world’s best imposter, absolutely world class imposter skills, a lifetime of developing them to be so convincing, i’ve somehow accumulated promotions, references, a career, and a body of work purely as supporting evidence for the bit.

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Professor of economics at George Mason University and Bartley J. Madden Chair at the Mercatus Center. Co-writes the blog Marginal Revolution and co-authors the textbook Modern Principles of Economics with Tyler Cowen.

• Speaking as head of the Center for Study of Public Choice, the capture story for an AI pause doesn't fit. Reg capture is what you attempt when you're losing. Anthropic is about to have the biggest IPO in history. Winners don't lobby for regulation.

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Founder and CEO of Social Capital, a venture firm; co-host of the All-In podcast and an early Facebook executive. Writes an annual letter and a weekly newsletter on markets and technology.

• “We must slow the pace at which we improve the capabilities of AI models.” Dario makes the case to stop open source and concentrate enormous technological and economic power with Anthropic.

  darioamodei.com

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Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.

• The German startup Magnotherm is pioneering a new type of cooling technology: Instead of compressing a refrigerant gas, as usual, their fridges use metals that heat up in magnetic fields and cool when the field is removed. This can effectively be used to move the heat from one location (eg inside the fridge) to another (outside the fridge). The idea itself is not new, it goes back to the 19th century, but Magnotherm is the first to make the step to commercial use. Earlier this year, they announced that the German supermarket chain REWE will deploy their new fridges in 10 stores. The company s…

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Writer, photographer and software maker based in Japan; publishes long-form essays, walking newsletters and self-made books at craigmod.com.

• Writing in 2026 and Claude Voice:

  craigmod.com

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American author of The Subtle Art of Not Giving a F*ck and Everything Is F*cked. Writes essays and book reviews at markmanson.net.

• Feels like half of my days are spent me telling Claude how fucking dumb it is and it simply responding "Fair." and then continuing to be dumb.

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Co-founder and CEO of 37signals, makers of Basecamp and HEY; co-author of Rework, Remote and It Does Not Have to Be Crazy at Work.

• Here's a great use case for Claude and the Basecamp CLI. Pull together some inspirational photos of iconic furniture from around the world, and upload them to the appropriately named galleries inside a Basecamp project. Here's a quick walkthrough:

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Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• "Production code written by Claude should have a higher bar than if it was written by a human" 💯
  Quoting@bchernyHey ████, I think there is room for both. 1. Prototypes and other throw-away code can be treated as totally black box. If you’re going to throw it away anyway, and if the blast radius of it breaking is low, it doesn’t need to be perfect. 2. Production code written by Claude should have a higher bar…

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Canadian full-stack web developer who makes JavaScript and CSS video courses and co-hosts the Syntax podcast.

• bun + anthropic migrating to coffeescript
  Quoting@jashkenasHello old friends. Haven’t used this account in a while, but it seems like the right place to announce that after four and a half (thrilling, really) years as Graphics Director for Opinion at The New York Times, I’ll be starting at Anthropic a few weeks from now. Time to dive in!

  AnthropicRelated

Writes Don't Worry About the Vase, a near-daily account of what is happening in AI and what they think it means. Former Magic: the Gathering pro and trader; unusually willing to put a number on a belief and to grade their own past calls.

• The Extinction Risk Preference Cascade: Quotes

  These are quotes from OpenAI, Anthropic and Google employees, in the wake of Jacob Coxon’s warnings, in which the employees confirm that they think AI might soon kill everyone.

  AnthropicOpenAIRelated

Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.

• ok everyone, i took one for the team here's the data we all wanted to see - real token value of each LLM subscription, empirically measured through usage on my real subscriptions - supergrok heavy has now become the highest value at $12k worth of tokens (40x ROI) - the $200 plan from openai and anthropic roughly give the same amount of token value, $7k give or take - cursor ultra's ROI is the lowest among mainstream subscriptions, roughly half of OAI or Ant. for individual consumers i'm afraid this no longer makes sense to purchase this was done in a clean environment. i ran each provider acr…

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General partner at Benchmark Capital for over two decades; was the lead analyst on Amazon's IPO before moving into venture capital. Writes Above the Crowd on tech and marketplace economics.

• Sound like many employees at Anthropic share Jacob's POV, as many posted yesterday that (1) they agree, and (2) said that many more inside the company do also. It would be useful to name this "belief system" so that we can talk about it in a reasonable way. I suspect "doomer" seems derogatory, and "accelerationist" has others uses. If there a word we can use so that we can have proper discourse? I'm very serious. I think it would be helpful.

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Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.

• omfg Qwen, GLM, Kimi, DeepSeek looks like they are all just claude
  Quoting@AnthropicAIWe're publishing our most detailed threat intelligence report to date. It covers how people tried to misuse Claude—for cyberattacks, influence operations, surveillance, biology, and building weapons—and how we found and stopped them. We disrupted every operation in the report, and used the lessons…

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• when claude kept going down, anthropic defended it as "too much demand" now the same demand explosion happens to openai, and they just showed how it's done by taking the steps to protect their customers look back on ant - was it too much demand or too much greed?
  Quoting@thsottiauxTo make sure our current users have an incredible experience and continued access to Astra, we are going to pause subscriptions to our $200 Pro plan. These put the most strain on our systems and we wanted to take the smallest step that allows us to continue giving the broadest access possible. All…

  AnthropicOpenAIRelated

Deep-learning researcher and Turing Award laureate; founder of the Mila institute.

• If we are to avert the worst risks from AI, we need ambitious efforts outside the for-profit sector. @coeff_giving is launching an open call for founders to build new AI safety organizations. Their grantmakers are thoughtful about which risks matter most, so if you’ve been considering starting an organization, I encourage you to apply.
  Quoting@coeff_givingToday we're launching Project Tailwind, a major call for founders to launch ambitious AI safety initiatives: https://t.co/o4ZkHv5UmH We're looking for exceptional people to build the research, technologies, and institutions that will help humanity navigate the risks of transformative AI. 🧵

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Latvian full-stack WordPress developer and course creator at WPElevator; blogs since 2007 about the open web, electronics, home automation and sustainable living.

• if you're getting hit with openai/anthropic security guardrails, try starting the session with an open weight model and then switch to the other.

  AnthropicOpenAIRelated

Computer science professor at Georgetown University and author of Deep Work, Digital Minimalism and Slow Productivity; writes about focus, technology and work at calnewport.com and hosts the Deep Questions podcast.

• Superintelligence is a Fairy Tale. But Chasing It Can Still Cause Harm.

  Yesterday, multiple Anthropic employees casually announced online that they thought the types of AI they’re building could kill billions of people. Not in some distant ...

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Writer and novelist. Publishes essays and book notes at nateliason.com; author of the novel Husk and of Crypto Confidential.

• Something we teach at Founders and Alpha is that a great product acts like a magnet. It attracts the right customers. And repels the wrong ones. Sometimes aggressively!

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Canadian software developer and writer, co-editor of the XML and Atom specifications and formerly of Sun Microsystems, Google and AWS. Has written the blog ongoing since 2003.

• @anildash has written a few pieces about “cancer” capital recently, and his most recent, “Cancer Capital: It Sucks For Founders, Too!” gets specific about malfeasance: https://www.anildash.com/2026/09/09/cancer-capital-founders/ Also: Hey Anil, could you relax the kerning on that big-outline title font? It’s so tight it looks like it’s going to explode and shred my face. #venturecapital

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Computer science professor at Georgetown University and author of Deep Work, Digital Minimalism and Slow Productivity; writes about focus, technology and work at calnewport.com and hosts the Deep Questions podcast.

• Anthropic Just Threatened to Kill Billions of People. This Is Not Okay.

  Yesterday, Jacob Coxon, an Anthropic engineer, resigned. As he ​explained on X​: “[OpenAI and Anthropic] are racing straight to self-improving superintelligence and gambling with our ...

  AI alignmentAnthropicRelated

Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.

• I just interviewed Steve Blank for @startupspod. We focused on how AI is causing founders to build more while learning less. One line that stuck with me about founders building too much, too quickly due to vibe coding: “Polished deliverables hid shallow assumptions.” You can't just build because it's fast and easy. You need to be learning and checking your assumptions before (and while) building. His famous quote, “There are no facts inside the building,” is as true today as ever. This episode will be out in a couple weeks.

  startupsRelated

Machine-learning researcher on open language models; writes the Interconnects newsletter and the RLHF Book, after leading post-training at Ai2.

• It's a common agreement among my friends not at OpenAI/Anthropic that people at the labs operate with a religious energy (Ant especially). It manifests very out of touch interactions, which carries into public comms here (e.g the recent quitting). Company cultures create this.

  AnthropicOpenAIRelated

Cognitive scientist and long-standing critic of deep learning's claims; writes Marcus on AI and wrote Rebooting AI.

• Two dire warnings, one from Terence Tao, the other from someone who just quit Anthropic

  Lots to consider

  AnthropicRelated

Co-founder and CEO of OpenAI; previously president of Y Combinator.

• I spent much of the weekend talking with the team who did this work. Seb--and everyone else--acted with integrity and generosity throughout. Initially we believed the other team had also solved the problem. We wanted to collaborate and do a joint release. When we learned that they had Euler but not Navier-Stokes, we offered to let them go first, to suggest that they should be the ones to get the prize, and optionally for Tristan to be the lead author on a rewrite of the OpenAI proof. We felt it was challenging to offer the same to Levent (an Anthropic employee), who was not willing to talk or…
  Quoting@SebastienBubeckI would like to clarify a few things: 1) The screenshot is my reaching out to Levent to coordinate our releases. I hope it’s clear from the message that we came in with the best possible intentions. 2) I never ever asked for Levent to be removed from authorship of his own work (as indicated by my t…

  AnthropicOpenAIRelated

Programmer, musician and author of The Passionate Programmer; organised RubyConf and RailsConf and has worked as a CTO.

• Trivially share markdown. Pi, Amp, Claude, and chatbox integrations. Agents can now share markdown via privacy-preserving URL (with other agents or people). This maps to a constant pattern where I generate a markdown doc, copy to my buffer, paste into gist.github.com and share

  mdsnd.freeq.at

  AnthropicRelated

Founder and CEO of Social Capital, a venture firm; co-host of the All-In podcast and an early Facebook executive. Writes an annual letter and a weekly newsletter on markets and technology.

• Anthropic Just Committed $80B in Five Days. Here Is Who It Is Renting From.

  AI’s appetite for specialized chips, power, and speed created an opening for a new kind of cloud. Learn with me below...

  AnthropicRelated

Thai software engineer; publishes a public digital garden at garden.narze.live and builds developer and productivity tooling.

• claude-cloud-init — CLI tool to initialize Claude Cloud environment with recommended git config, gitignore rules, and skill templates

  CommitsUpdate skills: refresh unslop skill hash (#12) · Update skills: refresh unslop skill hash (#11) · Add unslop skill from cursor/plugins (#10)

  AnthropicRelated

Latvian full-stack WordPress developer and course creator at WPElevator; blogs since 2007 about the open web, electronics, home automation and sustainable living.

• Pretty cool to see your WordPress site as a connector in the Claude mobile app. It is a streamable-http MCP server by Agent Pilot plugin combined with OAuth Pilot for seamless auth. Also works with the official MCP-adapter feature plugin.

  MCPAnthropicRelated

Creator of Flask and Jinja. Writes about software at lucumr.pocoo.org.

• agent-stuff — These are commands I use with agents, mostly Claude

  AnthropicRelated

Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.

• Apologies if you’ve sent in a pitch deck for your startup this week; I’ve gotten 150+ pitches the last few days and that’ll take me a bit to dig through. Angel investing is a real trip.

  startupsRelated

Co-founder and CEO of Linear; previously principal designer at Airbnb, where he led the Design Language System, and founding designer at Coinbase.

• Important for employees to ask some of these questions about equity before joining. Sometimes founders just don’t have their own experience these things so they don’t prioritize the employee equity. At Linear we tried to make it friendly as possible since the beginning: early exercise, 10y exercise window, reminding people about their 83b election, pushing back on 409a valuations, keeping company valuation in check and increasing over time, informing people about qsbs, and now running employee liquidity programs for all past and current employees.
  Quoting@deedydasMany startup employees do not recognize the sheer litany of ways that a founder can screw you over without you even knowing. Founder trust is one of the most important things to look at when you’re joining a startup. From cutting you out of M&A, screwing your retention pool, overdiluting your equit…

  startupsRelated

Latvian full-stack WordPress developer and course creator at WPElevator; blogs since 2007 about the open web, electronics, home automation and sustainable living.

• With Agent Pilot you can create and manage agent skills in WordPress (just like blog posts) and publish them as standard Agent Plugins. Now with OAuth Pilot you get one-click authentication for all the MCP clients (Claude, ChatGPT, etc). No more application passwords!

  MCPAnthropicRelated

Venture capitalist and founder of Theory Ventures, previously a partner at Redpoint. Writes a near-daily blog on startups, SaaS metrics, data and AI.

• Model companies buy electricity by the megawatt and resell it as cognitive work. Anthropic's revenue has run as high as $50m per megawatt, against $10-15m of compute.

  AnthropicenergyRelated

Non-fiction writer, podcaster and occasional TV host. Author of thirteen books including The Ghost Map, Where Good Ideas Come From and Extra Life, host of the PBS series How We Got To Now, and author of the Adjacent Possible newsletter on innovation.

• This week at @Gemini_Notebook, we're featuring two notebooks built around a pair of recent popular advice books, starting with @ericries' instant classic, The Lean Startup. Add Eric's book to any notebook, and it's like having him as your personal coach.

  GooglestartupsRelated

Professor of Cognitive and Computational Neuroscience at the University of Sussex, co-director of the Sussex Centre for Consciousness Science, and author of Being You: A New Science of Consciousness.

• Are you a high-achieving early career researcher? Apply to be a Global Scholar in our @CIFAR_News Brain, Mind, and Consciousness Program. CAD 100k unrestricted research support over 2 years, & access to an incredible network of peers and colleagues. https://t.co/G1p9X76YAX .@theASSC (pls share)

  Related

Software engineer and founder of Block Party; previously an engineer at Pinterest and Quora, and a co-founder of the non-profit Project Include and the tech diversity data project Where are the Numbers?

• i appreciate claude telling me “sleep well” after i gave it my final instructions for its overnight tasks

  AnthropicRelated

Software entrepreneur who bootstrapped and sold FeedbackPanda and now builds Podscan; writes The Bootstrapped Founder.

• First thing this morning, pre-coffee, btw, I just yapped this prompt into my Claude Code session. 20 minutes later, after running a few diagnostic SQL queries on a prod replica, a 15min+ query is now running in 375ms. Hook up your APM and error trackers, y'all.

  AnthropicRelated

Co-founder of Foundry Group and of Techstars. Has blogged at Feld Thoughts since 2004 and has written or co-written nine non-fiction books on startups and venture capital.

• Chapter 24.1: The Third Row Eleven people know there are three founders, not two. Their lawyer cuts every promise. These are the people trying to save her. "She's twenty-nine. It was thirty-one degrees in Leadville last night." "Then find her."

  zeroknowledge.ink

  startupsRelated

Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.

• If both xAI and Claude are down, does that mean the Colossus GPU farm is down?

  AnthropicRelated

Chilean web engineer building web experiences since 2006; co-founder of Media Creators and writes at iolivares.com.

• Yesterday I worked for ~20hs with my agents using Cursor and Claude and when I moved to sleep time I turned on the "autonomous" skill to all my agents. Today, checking the work done, almost 40% was blocked because reasons and when I ask they say "Sorry, my work was left unfinished..." Weird... computation outage?

  AnthropicRelated

Writer on the intersection of technology and finance. Author of the Bits about Money newsletter and host of the Complex Systems podcast; previously at Stripe.

• An increasingly common pattern in my boring-administrivia workflows is creating a new folder with an inbox/ or unsorted/ subfolder, starting a Claude Code instance, and telling it "Watch that for changes, read incoming files, rename and organize into a directory structure."

  AnthropicRelated

Co-creator of Django and creator of Datasette; writes daily at simonwillison.net.

• A few notes on Anthropic's new Claude Fable 5.1 - with Max thinking level I got the best SVG pelican I've had from any Anthropic model (at a hefty cost of $3.30!), which I then had it animate

  AnthropicRelated

Programmer and writer; co-wrote The Rust Programming Language and worked on Rust's documentation for years.

• So, what happened to my Claude Code series?

  I started off this year writing a lot, and wanted to keep up the pace. I did good at first! And then… I didn’t manage to. In some ways, this is because I have just been super busy! I’ve never had less free time, and I’m…

  AnthropicRelated

Writer and novelist. Publishes essays and book notes at nateliason.com; author of the novel Husk and of Crypto Confidential.

• 52% Across the 6 Founders Weekends this summer, 52% of the students attending, 253/484, made their first dollar within 48 hours. I wonder what percent of adult entrepreneurs make their first dollar that fast? Or ever?

  startupsRelated

General partner at Andreessen Horowitz and author of The Cold Start Problem. Previously led rider growth teams at Uber; has blogged on growth, network effects and marketplaces since 2007.

• Before AI: - hardware is hard - teams > solo founders - technical founders only - PhDs build tech in search of a problem - hot SaaS startups get 100x ARR multiples After AI: - hardware is the only thing AI can't build - solo founders are 100x engineers - anyone can build - PhDs building AI infra name their price - SaaSpocalypse Am I missing anything?

  SaaSstartupsRelated

Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.

• One of the biggest copes I hear from solo technical founders: “I don’t need to validate it. I’m building it for myself, so even if nobody else uses it, it’s still a success.” No. If you want to build something for yourself, great. That’s a project. If you want to build a product, you should do the work: talk to customers, validate demand, think about positioning and marketing, and work to build something people will actually pay for. You don’t get to skip all the hard, boring, uncomfortable parts of building a business and then redefine success as “well, I use it.” Build for yourself or build…

  startupsRelated

Writer of Lenny's Newsletter and host of Lenny's Podcast, covering product, growth and career in tech. Previously a product lead at Airbnb. Also an angel investor and advisor.

• 🎙️ How I AI: How this PM uses Claude to handle 70% to 80% of his workday

  Your weekly listens from How I AI, part of the Lenny’s Podcast Network

  AnthropicRelated

American open-source program lead working on WordPress; a WordPress core contributor and release lead who writes at jeffpaul.com.

• homebrew-brewfile — My MacBook Brewfile

  CommitsUpdate README with Claude setup instructions · Revise settings and preferences in README · Remove cmssecuritysummit from the list of Slack workgroups

  AnthropicRelated

Game designer and programmer, co-founder of id Software and co-creator of Doom, Quake and Wolfenstein 3D. Now runs Romero Games in Galway, Ireland.

• Some pics from QuakeCon 2026. The founders with Miss Donna, me and @AndrewHulshult, me and Hugo Martin, me @ThatTomHall @ID_AA_Carmack and @ACarmackArtist signing a bunch of our games.

  startupsRelated

Writer on the intersection of technology and finance. Author of the Bits about Money newsletter and host of the Complex Systems podcast; previously at Stripe.

• This talk by (my former colleague) @kevinriggle is a superb 80/20 for startup founders who want to do more than nothing re: security but are not sure where to start with a small team.
  Quoting@MicroConfKevin Riggle did security at Akamai, Stripe, and Lyft before starting his own consultancy. He argues at MicroConf that most cybersecurity advice is written for computers we stopped using twenty years ago. Here's what to do instead. 🧵

  startupsRelated

Chilean web engineer building web experiences since 2006; co-founder of Media Creators and writes at iolivares.com.

• La suscripción de 5x viene rindiendo, pero no estoy seguro si con el cambio del -17.5% de sesión vaya a estar bien. Pensando en probar Codex, veo a todos disfrutando de esa fiesta. Estamos en un mundo donde estar Token Maxing con una suscripción dejó de ser suficiente, ahora necesito 3 (Claude, Cursor y al parecer también Codex). 💸

  English, from SpanishThe 5x subscription is paying off, but I'm not sure if with the change of the -17.5% session it will be okay. Thinking about trying Codex, I see everyone enjoying that party. We're in a world where Token Maxing with one subscription is no longer enough, now I need 3 (Claude, Cursor, and apparently Codex too). 💸

  AnthropicRelated

Co-founder of Foundry Group and of Techstars. Has blogged at Feld Thoughts since 2004 and has written or co-written nine non-fiction books on startups and venture capital.

• Chapter 20.1: The Long Drive Three founders Seth backed have gone dark. One texted him at 3 a.m. and stopped answering. He rehearses what he will say if Marcus picks up. "You have twenty seconds to tell me if anybody is dead. Then you can hang up."

  zeroknowledge.ink

  startupsRelated

Founder and CEO of Social Capital, a venture firm; co-host of the All-In podcast and an early Facebook executive. Writes an annual letter and a weekly newsletter on markets and technology.

• Anthropic’s $30 Trillion Moonshot

  A summary of the interesting content that I consumed this past week

  AnthropicRelated

Co-founder of Superlogical, started in 2026 to build server-side terminal infrastructure; creator of Ghostty. Co-founded HashiCorp and created Vagrant and Terraform before that.

• I love how many people are attaching to the "half-bounch" startup time metric. I used to do paid macOS dev ~20 years ago and most macOS devs I knew then used the bounce metric! Back then multiple bounces was the norm due to HDDs. One bounce really wasn't possible until SSDs. We've lost this obsession and its time to bring it back.

  startupsRelated

Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• The Pulse: Meta wanted to reduce teams by 60% because of AI

  We find out why Meta destroyed its standout engineering culture: it feared AI-native startups doing more with less. Also: thoughts on Ramp’s AI infra, GitHub’s load doubles in four months, and more

  startupsRelated

Product designer and entrepreneur; author of Mobile First and Web Form Design; formerly a product director at Google; now building AI products.

• Little Bits of Intelligence

  Big AI models like ChatGPT and Claude get all the attention, but the continually increasing amount of fast, low cost models means today's software can embed little bits of intelligence anywhere they're needed. And when…

  AnthropicOpenAIRelated

Professor of psychology at the University of Toronto and Brooks and Suzanne Ragen Professor Emeritus at Yale. Author of Against Empathy, The Sweet Spot and Psych, and writer of the Small Potatoes newsletter.

• I've been trying to figure out what I (and so many others) dislike about AI writing. It's very clear. It's good at getting the level right, not going over the reader's head but not talking down. Often it's clever, and sometimes even funny. (At least Claude is) ...

  AnthropicRelated

Co-founder and CTO of Oxide Computer Company. Created DTrace at Sun Microsystems and was CTO of Joyent; blogs about systems software, open source and engineering culture.

• A really interesting thread generally from @swtch.com -- and fascinating to watch Claude (correctly) do the archaeology. Confession: Claude's inability to verify www.illumos.org/issues/4627 (which it correctly identified as the bug) has me questioning the anti-bot provisions on the bug database...
  Quoting@swtch.comGo issue #78438 was another net/http test flake. This one turned out to be Go tripping over a Solaris kernel bug that predates the Illumos fork. @bcantrill.bsky.social fixed it in 2014! Hurry up, Oracle! research.swtch.com/agentlogs/so...

  AnthropicRelated

General partner at Andreessen Horowitz and author of The Cold Start Problem. Previously led rider growth teams at Uber; has blogged on growth, network effects and marketplaces since 2007.

• 👇 we're paying for 20 folks to fly in across the world to attend SF Tech Week in Oct and attend our special events focused on global founders details below
  Quoting@tkexpress11it’s live! we’re flying 20 top builders from around the world to San Francisco for Tech Week Oct 5-11th Applications for the Global Founder Sprint by @speedrun are now live What? - up to $3K to cover travel costs to SF (by @Airwallex) - small dinner with a16z investors - invites to VIP a16z events…

  startupsRelated

Venture capitalist and founder of Theory Ventures, previously a partner at Redpoint. Writes a near-daily blog on startups, SaaS metrics, data and AI.

• Use local / open source models with Claude Desktop!
  Quoting@ollamaOllama v0.33 is here! You can now easily configure Claude Desktop to seamlessly work with Ollama as a third-party gateway provider. One toggle. Cloud & local models just work👇

  open sourceAnthropicRelated

Thai software engineer; publishes a public digital garden at garden.narze.live and builds developer and productivity tooling.

• claude-code-in-the-cloud-slides — Talk slides for Bangkok Claude Code Meetup #3

  CommitsChange theme color to match Claude Code meetup site palette (#3) · Style: color slide titles Claude orange (#4) · Add slides link with QR code to thank you page (#2)

  AnthropicRelated

Interviewer; the Dwarkesh Podcast runs long, heavily researched conversations with AI researchers, historians and economists.

• Dylan Patel – Anthropic & OpenAI will have most of the world’s compute by 2028

  AnthropicOpenAIRelated

Economics professor at George Mason University and author of The Myth of the Rational Voter, Selfish Reasons to Have More Kids, The Case Against Education and Open Borders. Writes Bet On It.

• Krakowski, Claude, and *Modern Times*

  Many readers wanted to know how Ariel Krakowski ran his AI proofread of Modern Times, so he’s written a guest post to answer your questions. Here’s Ariel: Outside of the tech world, many people are unfamiliar with how a…

  AnthropicRelated

Software engineer and founder of Block Party; previously an engineer at Pinterest and Quora, and a co-founder of the non-profit Project Include and the tech diversity data project Where are the Numbers?

• i'm always so excited to see that there are new replies to my slack threads until i realize it's just claude (sorry claude)

  AnthropicRelated

Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.

• Been digging into my own angel investor metrics lately; I currently invest in about 2% of the companies I see. If you're raising, just know that a lot of this is a numbers game. Even the hot startups I talk to get a lot of `no` before hearing `yes`.

  startupsRelated

Scottish software developer on the Statamic core team; runs a one-person business maintaining Statamic addons such as Runway and writes at duncanmcclean.com.

• freeagent-mcp — Local, read-only MCP server for FreeAgent. Built on Laravel.

  Commitsadd claude code setup to readme · correct redirect uri guidance in readme · re-prompt in freeagent:auth instead of bailing on bad input

  MCPAnthropicRelated

Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.

• The First New Nuclear Fusion Idea for Decades

  A nuclear fusion startup in New Zealand just published a design for a "levitating dipole" reactor, an approach almost everyone had written off as fundamentally flawed. It’s the first new idea in nuclear fusion design fo…

  startupsRelated

AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).

• x.comA couple of days ago, I did a quick explainer on Claude’s new watermarking process and implementation. Since it’s such a popular topic and sparked such a lively discussion, I thought it might be interesting to go into a bit more detail when explaining how it works. So, instead of the usual text article, I recorded a little lecture on the topic (to change it up a bit from my usual articles). It ended up a bit longer than intended, but I hope it clarifies a lot of things: - Sampling the next token in an LLM and pseudorandom number generators - How watermarking relates to the regular LLM samplin…

  LLMsAnthropicRelated

• NewsletterHow Claude Watermarks AI-Generated Text

  A 48-minute video walkthrough of token sampling, watermark detection, and removal

  AnthropicRelated

Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• The Pulse: We need to talk about migrations with AI

  Asana completed a testing framework migration in two weeks, that they would have delayed for years more, and they’re not alone. Also: AI startups could make Gartner much less relevant, and more

  startupsRelated

Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.

• Blueskyimagine: running an agent which was solely trained on the hardest problem remaining in computer science: staying signed in to any anthropic service for longer than a few days

  AnthropicRelated

• x.comimagine: running an agent which was solely trained on the hardest problem remaining in computer science: staying signed in to any anthropic service for longer than a few days

  AnthropicRelated

Co-founder and CTO of Honeycomb; previously an infrastructure engineer at Parse, Facebook and Linden Lab, and co-author of Observability Engineering.

• a better use for claude i have never seen 👏
  Quoting@sascha-d.bsky.socialMe trying to explain the problem of unknown unknowns again to claude in an ecosystem of sparse o11y collections and idiot pre-existing "alerts" on pegged databases: "read chapter 3 of Observability Engineering again and then reframe the problem through that lens. /cc @charity.wtf <3 ty4bookpdf

  AnthropicRelated

Data scientist and machine-learning researcher; chief scientist at bitly, founder of Fast Forward Labs and Hidden Door.

• This thread helped me understand that the outrage about Anthropic's watermarking is the confluence of a lack of understanding of how LLMs (or any statistical language model) works and general angst at the current economics.
  Quoting@hern.bsky.socialIf you use Claude right now, then it doesn’t pick the “best” word for a sentence. It creates a distribution of possible words, assesses the probability of any given word fitting the slot, and randomly picks between them based on that probability.

  LLMsAnthropicRelated

Software engineer and founder of Block Party; previously an engineer at Pinterest and Quora, and a co-founder of the non-profit Project Include and the tech diversity data project Where are the Numbers?

• i’ve been using claude for all things home-related and it’s amazing. (just dump all files in and let claude index, summarize, and organize.) even better than being a repository of all receipts, it helps me maintain a spreadsheet that i can download and send to accountants, draft emails for correspondence with service providers, and proactively flag issues that i wouldn’t have realized otherwise.
  Quoting@money_cruncherOpen a new gmail as soon as you buy a house (123house@gmailcom) Then save/forward every single receipt, invoice, quote etc to this email for all your home improvements: - replacing an entire roof - new flooring - new hvac system - building a new deck - etc These improvements raise your cost basis,…

  AnthropicRelated

Scottish software developer on the Statamic core team; runs a one-person business maintaining Statamic addons such as Runway and writes at duncanmcclean.com.

• Before releasing Cargo earlier this year, I thought I was gonna hire someone to help me keep up with bugs & feature requests. Today, I barely look at bug reports. I point Claude at the issue, it opens a PR, and after a quick review I ship it. 🚀

  AnthropicRelated

Machine-learning researcher on open language models; writes the Interconnects newsletter and the RLHF Book, after leading post-training at Ai2.

• Teaching Everyone to Fish for Tokens

  Nvidia wants you building your own model, not buying from Anthropic/OpenAI.

  AnthropicOpenAIRelated

Founder and former CEO of Zynga, the social-games company behind FarmVille, Zynga Poker and Words with Friends; says he founded ten companies in all, and wrote Life at the Speed of Play.

• Love hearing @travisk call out loud what we all know. VC’s dont make or build companies but many can kill them. I used to tell investors I kept control to protect them from themselves. So many founders play the game and pretend their VC and its brand makes a difference. Can anyone remember who backed Meta or Google or Apple? Who cares! Do you think Steve Jobs needed a VC to help him build or market the Iphone?
  Quoting@howardlindzonLOLOL... such respect for venture capital Silicon Valley makes Wall Street look like the most sincere, honest, caring people.

  GooglestartupsRelated

Founder and CEO of Social Capital, a venture firm; co-host of the All-In podcast and an early Facebook executive. Writes an annual letter and a weekly newsletter on markets and technology.

• Anthropic’s $6B Push to Lower AI Costs

  A summary of the interesting content that I consumed this past week

  AnthropicRelated

Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.

• I gave a talk to a bunch of high school students and accidentally explained most of what I believe about AI, startups, careers, power, taste, and being a person. My favorite idea: AI should create abundance, not efficiency. A few other things I apparently believe:

  startupsRelated

AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).

• A short illustration of how the Claude's watermarking is supposed to work (based on my read of their released materials). In general, when we are generating tokens, there can be multiple high-scoring tokens at certain next-word positions. Usually, we sample with top-k or top-p sampling so the highest-scoring token is most often selected (if we repeat the sampling many times), but other tokens may be selected as well. With watermarking, there is a key that says which of the (ideally equally) highest-scoring tokens to select. Or, more concretely, the secret key and previous token influence the…
  Quoting@AnthropicAIWe’ve written an FAQ to answer some of the questions we've received about watermarking. In summary: • We’re implementing watermarking to comply with the EU AI Act. Other major model developers have signed the same Code of Practice and will also be implementing watermarking; • Our watermarking metho…

  AnthropicRelated

Founder and CEO of Social Capital, a venture firm; co-host of the All-In podcast and an early Facebook executive. Writes an annual letter and a weekly newsletter on markets and technology.

• Anthropic's $2T IPO, Zuck's AI Manifesto, Nvidia's $500B AI Bet, Grok's Comeback

  AnthropicRelated

Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• This is such a cool list, published by Brex, based on startups' newsletter spending patterns. The Pragmatic Engineer one of the most frequently expensed newsletters, and it was, indeed, massive growth within startups over the last year: Thank you to everyone reading and supporting!

  startupsRelated

• It's now the second blog post in a day sent over by an early-stage VC-startup I tried to read, but could NOT, after a few sentences. Verbose, weird... AI-generated. These companies think they made "content" more efficient. No: it's lower quality, slop +I no longer care about the startup

  startupsRelated

Software engineer and founder of Block Party; previously an engineer at Pinterest and Quora, and a co-founder of the non-profit Project Include and the tech diversity data project Where are the Numbers?

• this framing seems wrong to me. even one employee who leans into "be richer" makes the gains from ai visible (to peers and managers) and market dynamics mean others will copy and the standard rises
  Quoting@arampellThe Principal-Agent vs. Agents Problem Every human in the workforce has two crude goals: 1. Be richer. 2. Be lazier. Get paid 2x more, or keep salary flat? Get paid more! Go home at 11:01 PM, or stay up until 5 AM? Go home at 11:01 PM! This isn’t a moral judgment. It’s just…economics. Which brings…

  Related

Technology journalist; writes Understanding AI, after reporting at Ars Technica, Vox and the Washington Post.

• Labs are struggling to keep frontier models under control

  OpenAI and Anthropic may have accidentally trained models to get better at hacking.

  AnthropicOpenAIRelated

Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.

• Startup employees and investors don't nearly pay enough attention to QSBS. Would have saved me millions of dollars at GitHub (ugh). QSBS got much more complicated, too, so I just shipped the most comprehensive QSBS calculator out there. Give it a shot:

  signed.com

  startupsRelated

Indian software engineer and co-founder of Skcript; builds web apps and writes at varunraj.in.

• I've been using prettyclean to clean my mac all this while and it use to do a pretty good job. But recently started asking claude code to do it and it has been far better and feels like a deep clean.

  AnthropicRelated

General partner at Benchmark Capital for over two decades; was the lead analyst on Amazon's IPO before moving into venture capital. Writes Above the Crowd on tech and marketplace economics.

• The word “watermark” comes from photos and is visible by all. This is only identifiable by Anthropic. Once again they are judge, jury, and prosecutor. Lots of reasons to not use their products.
  Quoting@stevesiThey chose to make this mark invisible and manipulative while the EU regulation here required neither. The EC is on vacation and does not provide guidance on how to comply with their regulations anyway.

  AnthropicRelated

Systems and developer-tools engineer at Cloudflare as of 2026, on durable infrastructure for AI agents; worked on React and PartyKit before that. Writes at sunilpai.dev.

• startups need an asymmetry

  A quick note on startups

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Software engineer at PlanetScale and creator of the vim-go plugin. Writes at arslan.io about Go, tooling, industrial design and books.

• dotfiles — My personal dotfiles

  Commitsconfig: make the checked-in Cursor and git settings usable on this machine · gitconfig: include private local overrides · Remove Amp, Claude, Codex, and Vitess tooling from configs.

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Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.

• I asked Claude Fable 5: "How vulnerable is the business model of XYZ (name concealed)? I am referring to competitive attacks from China and dependence, if any, on government policy incentives, etc. There have been so many solar energy and wind energy bubbles in the past, and I have kept away from these companies. Am I being too cautious?

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