Posts for simonwillison.net on Oct 2026

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45 Release: llm-echo 0.5

44 Inline rendering with document.currentScript

43 Release: web-edit 0.1a2

42 Tool: LaTeX renderer

41 Tool: Chirp Pong

40 Tool: Tree Appreciator

39 AI is mass decompiling games. That’s both awesome and scary.

38 Redesigning source control at Anthropic

37 Release: web-edit 0.1a1

36 Release: llm-gemini 0.35

35 Release: llm-meta-ai 0.2

34 Research: Profiling web-edit with Python 3.15: flame graphs and source heatmaps

33 A quote from Geoffrey Huntley

32 Release: web-edit 0.1a0

31 Release: datasette-ports 0.4

30 Hello Python 3.15, goodbye 3.10, and now I can use 3.11

29 Dwarf Fortress uses version control now

28 Python 3.15.0 added to actions/python-versions

27 A quote from The New York Times

26 Deno is joining Cloudflare

25 A quote from Matthew Green

24 A new feature for my blog, built using my voice

23 Release: ttok 1.0

22 Release: ttok 0.4

21 A quote from Carson Gross

20 A quote from Ben Affleck

19 Claude Haiku 5.5

18 Anti-Patterns in Software Blogging

17 A quote from Jake Boggan

16 OpenAI “rogue” agent activities found on Wikimedia projects

15 Release: llm-openai-decisions 0.1a0

14 Comment: Mistral Large 4

13 Comment: EmbeddingGemma 2

12 Release: llm-mistral 0.16

11 TIL: Using Parseable with Datasette for OpenTelemetry traces

10 Release: datasette-atom 0.11a0

9 Tool: Scrimshaw Jukebox

8 A quote from Felix Rieseberg

7 Research: Qwen3.8 27B addition in words

6 Release: llm-anthropic 0.30

5 Release: pwasm 0.2a0

4 We’re going to need default hard budget caps on pretty much everything

3 September sponsors-only newsletter

2 Museum: Rex's Dino Store

1 A quote from Matthew Green