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Simon Willison

Co-creator of Django and creator of Datasette; prolific writer on LLMs and practical AI tooling.

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From Simon Willison

399 posts
Simon WillisonJul 4, 2026

Better Models: Worse Tools

Better Models: Worse Tools Armin reports on a weird problem he ran into while hacking on Pi: The short version is that newer Claude models sometimes call Pi’s edit tool with extra, invented fields in the nested edits[]...

Simon WillisonJul 3, 2026

Open Source AI Gap Map

Open Source AI Gap Map Current AI is "a global partnership building a public option for AI", founded as a non-profit at the AI Action Summit in Paris in February 2025 and backed by serious capital ($400m already...

Simon WillisonJul 3, 2026

Quoting Josh W. Comeau

I just launched my third course, Whimsical Animations, and so far, it’s on track to sell roughly ⅓ as many copies as a typical course launch. It’s a similar story with my two existing courses. Sales are down...

Simon WillisonJul 3, 2026

Fable's judgement

One of the most interesting tips I got from the Fireside Chat I hosted with Cat Wu and Thariq Shihipar from the Claude Code team at AIE on Wednesday was to let Fable (and to a certain extent Opus) use their own...

Simon WillisonJul 3, 2026

June 2026 newsletter

The June edition of my sponsors-only monthly newsletter is out. If you are a sponsor (or if you start a sponsorship now) you can access it here. This month: Claude Fable 5, GPT-5.6, and US export restrictions GLM-5.2 is...

Simon WillisonJul 2, 2026

llm-coding-agent 0.1a0

Release: llm-coding-agent 0.1a0 Another Fable 5 experiment. Now that my LLM library has evolved into more of an agent framework it's time to see what a simple coding agent would look like built on it. I started a new...

Simon WillisonJun 30, 2026

Quoting Anthropic

We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5. We'll begin restoring access tomorrow, and will share an update soon. — Anthropic, on Twitter Tags:...

Simon WillisonJun 30, 2026

Nano Banana 2 Lite

Nano Banana 2 Lite Also known as Gemini 3.1 Flash Lite Image (gemini-3.1-flash-lite-image in their API), this is the "fastest and cheapest Gemini image model, engineered for velocity and scale". I used AI studio to run...

Simon WillisonJun 30, 2026

The AI Compass

The AI Compass This political compass style quiz by bambamramfan is pretty neat - answer 29 questions about AI and AI ethics to see which of the 30 archetypes you best fit. I'm impressed that my answers on my first time...

Simon WillisonJun 30, 2026

shot-scraper 1.10

Release: shot-scraper 1.10 The big new feature is shot-scraper video storyboard.yml, described in detail in Have your agent record video demos of its work with shot-scraper video. Tags: shot-scraper

Simon WillisonJun 29, 2026

HTML table extractor

Tool: HTML table extractor Yet another in my growing collection of paste-conversion tools. This one accepts pasted rich text from browsers (with embedded HTML tables) and converts every detected table into HTML,...

Simon WillisonJun 28, 2026

Quoting Jon Udell

Human Agent in the loop I dislike the phrase “human in the loop” because it cedes authority to the machines. Let’s flip the narrative. It’s our loop, we work the same way we always have, now we recruit agents to join...