Simon Willison
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- llm — Access large language models from the command-line 1 Sept
- tools — Assorted useful tools, almost entirely generated using LLMs 1 Sept
- scrape-florida-outages 1 Sept
- sqlite-utils — Python CLI utility and library for manipulating SQLite databases 1 Sept
- scrape-fema-shelters 1 Sept
- datasette — An open source multi-tool for exploring and publishing data 1 Sept
- simonwillisonblog-backup — Backups of the database for simonwillison.net 1 Sept
- usgs-scraper 1 Sept
- package-stats — Download statistics for my PyPI packages 1 Sept
- pge-outages — Tracking PG&E power outages 1 Sept
- Just noticed the ChatGPT desktop app (previously named Codex) bundles a full copy of the LibreOffice open source office suite, tucked away in a hidden folder i… 1 Sept
- Codex bundles LibreOffice 1 Sept
- llm-prices — Prices of various LLMs 1 Sept
- free-threaded-wheels-results — https://hugovk.github.io/free-threaded-wheels/results.json 1 Sept
- scrape-fediverse — Git scrapers for scraping the fediverse 1 Sept
- simonw — https://simonwillison.net/2020/Jul/10/self-updating-profile-readme/ 1 Sept
- Quoting Tarn Adams 1 Sept
- Python 3.15.0 candidate 2 is here! 1 Sept
- sf-tree-history — Tracking the history of trees in San Francisco 1 Sept
- ollama-models-atom-feed — https://ollama.com/search?o=newest 1 Sept
- recent-california-brown-pelicans — Publishing an atom feed of recent California Brown Pelican sightings from iNaturalist 1 Sept
- usgs-demo — https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.geojson 1 Sept
- scrape-faa-releasable-aircraft 1 Sept
- uv-init-demos — What you get when you run different uv init commands 1 Sept
- Introducing wrapture 31 Aug
- Quoting Andrew Digby 31 Aug
- Question for people who run autoreply bots here: are you not worried about the negative impact they have on your professional reputation? Anyone checking your… 31 Aug
- Here's my attempt at explaining what ChatGPT Work can actually do - it's a deeply confusing but extremely powerful tool with a whole lot of useful features tha… 31 Aug
- Understanding ChatGPT Work 30 Aug
- Introducing Hy4 Preview 29 Aug
- Just a rumour of a bug is enough to find a security exploit these days 28 Aug
- My LLM cliché highlighter is up to 38 patterns now 28 Aug
- Breaking Claude Code Opus 5 Auto Mode 27 Aug
- Question for ChatGPT iPhone users: have you figured out when to use Chat and when to use Work yet? What kind of tasks are you switching to Work for? Have you m… 27 Aug
- Qwen3.8-Flash-Next 26 Aug
- Quoting Paul Dix 26 Aug
- EVE Online: The Move to Python 3 Begins! 25 Aug
- llm-anthropic 0.27 24 Aug
- Your executable is a SQLite database 24 Aug
- Anthropic’s best AI model struggles to attract users as cheaper tools thrive 23 Aug
- Quoting Drew Breunig 23 Aug
- Quoting Linus Torvalds 22 Aug
- llm 0.33 22 Aug
- More than just code review 22 Aug
- llm 0.32.1 21 Aug
- I had Claude Code for web experiment with smolvm as a code execution sandbox Fable 5 spotted that its environment couldn't run that (no /dev/kvm)... so, withou… 20 Aug
- Here’s my review of Qwen 3.8 27B - I can't remember the last time I've had this much fun playing with a local model that runs on my own computers 16 Aug
- Qwen 3.8 27B in its default reasoning settings in LM Studio of "extra high" is a chronic over-thinker and I kind of love it 15 Aug
- The new Qwen 3.7 27B, running as a 17GB GGUF in LM Studio on my M5 Max laptop, just drew me the best pelican riding a bicycle I've seen from any model that run… 14 Aug
- The "introductory pricing" for the 3.7 Flash model is really weird It's scheduled to double in price on December 31, 2026, but who would anticipate still using… 13 Aug
- I few notes on Meta's new Muse Glimmer 30B - their first Apache 2.0 licensed open weight model (the Llama models had a janky non-OSI license) 11 Aug
- Claude Haiku is my current least favorite model - it hallucinates wildly, and is out-performed now by other similarly priced models like GPT-5.6-Luna Even wors… 10 Aug
- Muse Glimmer, the new 30B model, is available on Hugging Face right now - here's the GGUF version: 10 Aug
- Just noticed the Claude Opus 5 system prompt includes details of the Fable export control situation, in case people ask about it despite it being outside the m… 10 Aug
- Neat example here of the agents communicating purely through file names, including adding base64-encoded attachments and using "zz" prefixes to ensure their ne… 8 Aug
- Auto-mode does not yet convincingly fix prompt-injection risk for coding agents. 8 Aug
- Thanks to the video from the Black Hat security conference of OpenAI's presentation about "The Hugging Face Incident" we now have a detailed timeline of what h… 7 Aug
- 👀 7 Aug
- I had Codex Desktop and GPT-5.6 Sol Ultra take a go at building my Raccoon Heist game and it did an even better job than Claude Fable 5 did! Here's "Moonlight… 7 Aug
- It's time to reclassify PDFs as boomer technology I just want to be able to read an article on my phone! 7 Aug
- Giving consumer-facing models and API models separate brand names is needlessly confusing. 7 Aug
- Running coding agents without approval prompts is a normalization-of-deviance risk: the fact that it has not caused a disaster yet is itself the problem. 31 Dec 2025
- MCP may turn out to be a one-year wonder, because coding agents that can run arbitrary shell commands make Bash the best general-purpose tool interface. 31 Dec 2025
- Concerns about the energy cost of an individual LLM prompt are no longer credible, though the environmental impact of the AI datacenter buildout remains a real worry. 31 Dec 2024