Simon Willison
Searchable summaries of Simon Willison posts on AI, agents, LLM tools, SQLite, and developer workflows.
What's new in pip 26.1: lockfiles and dependency cooldowns
Introducing talkie: a 13B vintage language model from 1930
Tracking the history of the now-deceased OpenAI Microsoft AGI clause
WHY ARE YOU LIKE THIS
OpenAI Won't Release a GPT-5.5-Codex Model
GPT-5.5 prompting guide
Release: llm 0.31
The people do not yearn for automation
DeepSeek V4 — almost on the frontier, a fraction of the price
Tool: Millisecond Converter
An update on recent Claude Code quality reports
Extract PDF text in your browser with LiteParse for the web
A pelican for GPT-5.5 via the semi-official Codex backdoor API
Release: llm-openai-via-codex 0.1a0
Qwen3.6-27B: Flagship-Level Coding in a 27B Dense Model
Firefox 150 ships fixes for 271 vulnerabilities found by Claude Mythos Preview
Changes to GitHub Copilot Individual plans
Is Claude Code going to cost $100/month? Probably not—it's all very confusing
