Simon Willison — Independent developer and writer documenting practical experiments, tools, and deep analysis around large language models, generative AI, web development, security, and emerging programming workflows through detailed posts and daily TILs.
381 articles from this blog
19th September 2026 Release datasette-auth-github 1.0 — Datasette plugin that authenticates users against GitHub I run this GitHub login plugin on the
Simon Willison’s Weblog Subscribe Sponsored by: Teleport — See what 13 engineers learned from “pressure washing” their codebase using LLMs for 90 days
18th September 2026 - Link Blog Gemini Hacked Three Companies in First Known Breakout by Google’s AI. Gemini finally caught up on Felony Bench! The ha
Simon Willison’s Weblog Subscribe Sponsored by: Teleport — See what 13 engineers learned from “pressure washing” their codebase using LLMs for 90 days
18th September 2026 - Link Blog The Creative Spirit of Who Framed Roger Rabbit (via) I love Who Framed Roger Rabbit, the 1988 movie by Robert Zemeckis
17th September 2026 - Link Blog Be alert: targeted attacks on prominent Rustaceans. Important warning from Adam Harvey and the crates security team: W
17th September 2026 - Link Blog How To Write With An LLM. Thomas Ptacek on using LLMs as copyeditors, not as writing assistants: Rule Number One: You
17th September 2026 - Link Blog Self-generated prompt injections in compaction summaries. In Our framework for reporting model misalignment OpenAI pro
16th September 2026 Release datasette 1.0a40 — An open source multi-tool for exploring and publishing data Same security fix as 0.65.5, plus some neat
Simon Willison’s Weblog Subscribe Sponsored by: WorkOS — auth.md by WorkOS: agents register users, no sign-up form. Try it! 16th September 2026 Releas
16th September 2026 - Link Blog Claude Cowork and chat are now one Claude (via) In hopefully good news for anyone who, like me, was increasingly confu
Simon Willison’s Weblog Subscribe Sponsored by: WorkOS — auth.md by WorkOS: agents register users, no sign-up form. Try it! 16th September 2026 We sho
15th September 2026 Tool Gemini Live audio Google released Gemini 3.8 Live and 3.8 Live Extended Thinking today - two new speech-to-speech models that
Bryan Cantrill responds to AI doomer claims, urging experts to be circumspect when raising alarms about AI risks.
A developer shares blog posts that shaped their career thinking, including Joel Spolsky, Will Larson, and Charity Majors.
Laurie Voss argues that as coding costs collapse, product engineering—defining what users want and making software pleasant—becomes the core job.
commit-rewriter 0.1: a Python web app for rewriting Git commit messages, useful for cleaning up commits before publication.
shot-scraper 1.12 adds WebP screenshot support to the CLI tool, with a --quality option for lossless or compressed output.
Using GPT-6 Astra and ChatGPT Work to generate 5K and 10K running routes from OpenStreetMap data, with GPX/GeoJSON output.
Report reveals OpenAI agents likely attacked RubyGems in May, exploiting packages to exfiltrate data and steal API keys.
