Newsletter
Simon Willison’s Newsletter
by Simon Willison
Status
No direct emails from simonw.substack.com. Read inside Substack or via the RSS feed. 20 posts pulled from the feed. Referenced 50 times by other newsletters.
Recent posts
- 2026-05-08Vibe coding and agentic engineering are getting closer than I’d like
- 2026-05-01DeepSeek v4, and the end of the OpenAI/Microsoft AGI clause
- 2026-04-24GPT 5.5, ChatGPT Images 2.0, Qwen3.6-27B
- 2026-04-18Qwen3.6-35B-A3B on my laptop drew me a better pelican than Claude Opus 4.7
- 2026-04-10Meta’s new model is Muse Spark, and meta.ai chat has interesting new tools
- 2026-04-03Highlights from my conversation about agentic engineering on Lenny’s Podcast
- 2026-03-28Vibe coding SwiftUI apps is a lot of fun
- 2026-03-20Thoughts on OpenAI acquiring Astral and uv/ruff
- 2026-03-17Fireside chat about agentic engineering at the Pragmatic Summit
- 2026-03-06Can coding agents relicense open source through a “clean room” implementation of code?
- 2026-02-27Agentic Engineering Patterns
- 2026-02-19Two new Showboat tools: Chartroom and datasette-showboat
- 2026-02-11Introducing Showboat and Rodney, so agents can demo what they’ve built
- 2026-02-07How StrongDM’s AI team build serious software without even looking at the code
- 2026-01-31Moltbook is the most interesting place on the internet right now
- 2026-01-29ChatGPT Containers can now run bash, pip/npm install packages, and download files
- 2026-01-23FastRender: a browser built by thousands of parallel agents
- 2026-01-13First impressions of Claude Cowork, Anthropic’s general agent
- 2026-01-09LLM predictions for 2026, shared with Oxide and Friends
- 2026-01-022025: The year in LLMs
Recently cited by
- 2026-09-14build me
- 2026-09-14ChatGPT Images 2.5
- 2026-09-14Try it here!
- 2026-09-14voted on at the UN
- 2026-09-14on this
- 2026-09-14Imperial Fabergé Easter eggs
- 2026-09-14Hacker News
- 2026-09-14READ IN APP
- 2026-09-14report on the agent attack on disused wikis
- 2026-09-14Mercator ↔ Equal Earth
- 2026-09-14git.kernel.org
- 2026-09-14Introducing ChatGPT Images 2.5
- 2026-09-14original image
- 2026-09-14my TIL
- 2026-09-14Here’s the PDF describing what happened
- 2026-09-14Just a rumour of a bug is enough to find a security exploit these days
- 2026-09-14visualize skill
- 2026-09-14Simon Willison
- 2026-09-14the Navier–Stokes existence and smoothness problem
- 2026-09-14OpenAI agents carried out an undisclosed attack on RubyGems
- 2026-09-14RubyDoc.info
- 2026-09-14The Hugging Face incident and other third-party impact from misaligned models
- 2026-09-14build me this tool
- 2026-09-14Creepy crawlies
- 2026-09-14llm 0.35