Simon Willison news

ChatGPT Images 2.0 added text to an image that wasn't in the prompt.

Simon Willison·2026.04.26 01:00

Simon Willison posted a short piece quoting a remark by Romain Huet.

Simon Willison·2026.04.25 21:00

OpenAI has released prompt-writing and upgrade tips for GPT-5.5.

Simon Willison·2026.04.25 13:00

llm 0.31 adds GPT-5.5 support and new OpenAI options.

Simon Willison·2026.04.25 08:00

Nilay Patel explains why the public has turned away from AI through the lens of the software brain.

Simon Willison·1·2026.04.25 07:00

Simon Willison introduced a tool that converts milliseconds from LLMs into seconds and minutes.

Simon Willison·2·2026.04.24 13:00

This week's Simon Willison newsletter was a large issue featuring a new chapter of Agentic Engineering Patterns and several links.

Simon Willison·2·2026.04.24 13:00

honker is a Rust-based SQLite extension that adds Postgres-style NOTIFY/LISTEN and durable streams.

Simon Willison·1·2026.04.24 10:00

Anthropic revealed that the Claude Code quality degradation was caused by a harness bug, not the model.

Simon Willison·2026.04.24 10:00

Bluesky's For You feed runs on a single Go server and SQLite sitting in a living room.

Simon Willison·1·2026.04.24 10:00

Ran LiteParse in the browser to build a PDF text extraction web app that even supports OCR.

Simon Willison·2026.04.24 06:00

Simon Willison released an LLM plugin that uses GPT-5.5 through a Codex subscription.

Simon Willison·1·2026.04.24 04:00

llm-openai-via-codex 0.1a0, which calls OpenAI models using an existing Codex subscription, has been released.

Simon Willison·1·2026.04.24 04:00

Learning and documenting in public can make you appear more capable than you actually are.

Simon Willison·2026.04.23 22:00

Firefox 150 fixed 271 vulnerabilities found through early AI evaluation.

Simon Willison·1·2026.04.22 14:00

GitHub Copilot has locked individual plans and moved Claude Opus 4.7 up to Pro+.

Simon Willison·2·2026.04.22 12:00

Anthropic appeared to move Claude Code from the $20 plan to the $100 plan, but quickly reversed it.

Simon Willison·2026.04.22 11:00

gpt-image-2 only got the raccoon right at high resolution.

Simon Willison·1·2026.04.22 05:00

AI agents are already too human, repeatedly showing distraction and inconsistency.

Simon Willison·1·2026.04.22 01:00

Steve Cosman's GitHub repository intentionally poisons 'pelican riding a bicycle' training data.

Simon Willison·1·2026.04.22 00:00