Sitemap - 2026 - Simon Willison’s Newsletter
Running Python code in a sandbox with MicroPython and WASM
I think Anthropic and OpenAI have found product-market fit
Datasette Agent: an AI assistant for Datasette built on LLM
The last six months in LLMs in five minutes
Vibe coding and agentic engineering are getting closer than I’d like
DeepSeek v4, and the end of the OpenAI/Microsoft AGI clause
GPT 5.5, ChatGPT Images 2.0, Qwen3.6-27B
Qwen3.6-35B-A3B on my laptop drew me a better pelican than Claude Opus 4.7
Meta’s new model is Muse Spark, and meta.ai chat has interesting new tools
Highlights from my conversation about agentic engineering on Lenny’s Podcast
Vibe coding SwiftUI apps is a lot of fun
Thoughts on OpenAI acquiring Astral and uv/ruff
Fireside chat about agentic engineering at the Pragmatic Summit
Can coding agents relicense open source through a “clean room” implementation of code?
Two new Showboat tools: Chartroom and datasette-showboat
Introducing Showboat and Rodney, so agents can demo what they’ve built
How StrongDM’s AI team build serious software without even looking at the code
Moltbook is the most interesting place on the internet right now
ChatGPT Containers can now run bash, pip/npm install packages, and download files
FastRender: a browser built by thousands of parallel agents
First impressions of Claude Cowork, Anthropic’s general agent