simonwillison.net

Latest posts

• Quoting Luke Curley

  May 09, 2026
• Using Claude Code: The Unreasonable Effectiveness of HTML

  May 08, 2026
• llm-gemini 0.31

  May 07, 2026
• Big Words

  May 07, 2026
• Behind the Scenes Hardening Firefox with Claude Mythos Preview

  May 07, 2026
• Notes on the xAI/Anthropic data center deal

  May 07, 2026
• GitHub Repo Stats

  May 07, 2026
• Live blog: Code w/ Claude 2026

  May 06, 2026
• Vibe coding and agentic engineering are getting closer than I'd like

  May 06, 2026
• datasette-referrer-policy 0.1

  May 05, 2026
• Our AI started a cafe in Stockholm

  May 05, 2026
• datasette-llm 0.1a7

  May 05, 2026
• llm-echo 0.5a0

  May 05, 2026
• Quoting John Gruber

  May 05, 2026
• Granite 4.1 3B SVG Pelican Gallery

  May 04, 2026
• Quoting Andy Masley

  May 04, 2026
• April 2026 newsletter

  May 04, 2026
• TRE Python binding — ReDoS robustness demo

  May 04, 2026
• Redis Array Playground

  May 04, 2026
• Quoting Anthropic

  May 03, 2026
• Sightings

  May 02, 2026
• iNaturalist Sightings

  May 01, 2026
• Codex CLI 0.128.0 adds /goal

  Apr 30, 2026
• Our evaluation of OpenAI's GPT-5.5 cyber capabilities

  Apr 30, 2026
• Quoting Andrew Kelley

  Apr 30, 2026
• We need RSS for sharing abundant vibe-coded apps

  Apr 30, 2026
• The Zig project's rationale for their firm anti-AI contribution policy

  Apr 30, 2026
• llm 0.32a1

  Apr 29, 2026
• LLM 0.32a0 is a major backwards-compatible refactor

  Apr 29, 2026
• llm 0.32a0

  Apr 29, 2026