Simon Willison's Weblog: Blogmarks simonwillison.net

Introducing GPT‑5.3‑Codex‑Spark

simonwillison.net·2d

Covering electricity price increases from our data centers

simonwillison.net·2d

Gemini 3 Deep Think

simonwillison.net·2d·

Discuss: Hacker News

An AI Agent Published a Hit Piece on Me

simonwillison.net·2d·

Discuss: Hacker News

Skills in OpenAI API

simonwillison.net·3d

GLM-5: From Vibe Coding to Agentic Engineering

simonwillison.net·3d·

Discuss: Hacker News

cysqlite—a new sqlite driver

simonwillison.net·3d

Structured Context Engineering for File-Native Agentic Systems

simonwillison.net·5d

AI Doesn’t Reduce Work—It Intensifies It

simonwillison.net·5d·

Discuss: Hacker News, Hacker News

Vouch

simonwillison.net·1w

Claude: Speed up responses with fast mode

simonwillison.net·1w

An Update on Heroku

simonwillison.net·1w

Mitchell Hashimoto: My AI Adoption Journey

simonwillison.net·1w

Spotlighting The World Factbook as We Bid a Fond Farewell

simonwillison.net·1w·

Discuss: Hacker News

Voxtral transcribes at the speed of sound

simonwillison.net·1w

Introducing Deno Sandbox

simonwillison.net·1w

Introducing the Codex app

simonwillison.net·1w·

Discuss: Hacker News

A Social Network for A.I. Bots Only. No Humans Allowed.

simonwillison.net·1w

TIL: Running OpenClaw in Docker

simonwillison.net·1w·

Discuss: Hacker News

Singing the gospel of collective efficacy

simonwillison.net·2w

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