Simon Willison

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First seenSep 2, 2026
Last mentioned4h ago

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10 articles · newest first

LLMs erode trust in software, Kyle Kingsbury warns

Engineers may suspect any new project due to faked signals of maturity.

Simon Willison16:49 UTC · 4h agoAI safety & security1 · 1 read

Quoting Matthew Green

Cryptographer Matthew Green estimates a 15% chance AI advances functionally break confidence in current public-key encryption, urging advance preparation.

Simon WillisonOct 9, 15:02 UTC · 23d agoAI safety & security1 · 1 read

Claude Opus 5.5, GPT-6 Sol, GPT-6 Luna, and a new price war

Claude Opus 5.5, GPT-6 Sol, and GPT-6 Luna launched same-day, with GPT-6 models priced at half of GPT-5.6 equivalents.

Simon WillisonSep 22, 23:46 UTC · Sep 22, 2026Model release2 · 1 read

Quoting voxium

An engineer at a large company reports Claude Code generates all specs, code, and tests, forcing 12-hour days with no human review.

Simon WillisonSep 20, 21:06 UTC · Sep 20, 2026AI industry2 · 2 reads

llm-keys-ui 0.1

Simon Willison released llm-keys-ui 0.1, a plugin providing a web UI to store API keys on machines without pasting them into agent sessions.

Simon WillisonSep 20, 19:22 UTC · Sep 20, 2026AI tools & infra1 · 1 read

Soft-deprecating re.match()

Python 3.15 soft-deprecates re.match(), introducing the clearer alternative re.prefixmatch()

Simon WillisonSep 11, 14:47 UTC · Sep 11, 2026Other1

.blend URL Viewer

Simon Willison demos a .blend URL viewer built with GPT-6 Astra in Codex and ChatGPT Images 2.5 generating Blender models.

Simon WillisonSep 9, 23:58 UTC · Sep 9, 2026AI tools & infra2

August newsletter is out

Simon Willison published his sponsors-only August newsletter covering OpenAI's accidental cyberattacks, Claude auto mode, one-shot game generation, and recent model releases.

Simon WillisonSep 4, 05:54 UTC · Sep 4, 2026AI industry1 · 1 read

llm 0.34

Version 0.34 of Simon Willison's llm CLI adds response-duration metrics to log output, plus bug fixes and faster log querying.

Simon WillisonSep 2, 19:23 UTC · Sep 2, 2026AI tools & infra2

Quoting Rick Brewster

Paint.NET added a clean-room Direct2D rewrite for WINE, largely written by Anthropic's Claude and described as unreviewed 'vibe coded' code.

Simon WillisonSep 2, 05:50 UTC · Sep 2, 2026AI tools & infra2 · 1 read

Appears with

Anthropicvendor · 3
Claudeproduct · 2
Codexproduct · 2
Anthropicorganization · 2
OpenAIvendor · 2
ChatGPTproduct · 2
Tailscalevendor · 1
Grok 4.7ai model · 1
OpenRouterproduct · 1
llmproduct · 1
OpenAIorganization · 1
Blenderproduct · 1
llm-openrouterproduct · 1
Kyle Kingsburyorganization · 1
GPT-6 Solorganization · 1
ChatGPT Images 2.5product · 1

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