Independent open source developer and creator of Datasette
Simon Willison
Simon Willison is an independent developer, Datasette creator, and Django co-creator who builds open source tools and writes about language models.
About Simon Willison
Simon Willison is an independent open source developer and the creator of Datasette, a tool for exploring and publishing data. He builds software for data journalism and maintains LLM, a Python library and command-line tool for working with large language models.
He is a co-creator of the Django web framework and previously worked as an engineering director at Eventbrite after its acquisition of Lanyrd, which he co-founded. His long-running blog documents programming, AI tools, and experiments with language models.
Mentioned in our coverage
80 articles name Simon Willison, excluding author credits.
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- Jacob Coxon and Anthropic's IPO Compute Slide: Superexponential Claim vs S-1 →
On November 13, 2026 discussion resurfaced around Jacob Coxon, who left Anthropic citing civilizational AI risk. He now says a logarithmic pretraining-efficiency chart shown to investors was a major factor. Anthropic's S-1 and IPO roadshow discuss stacking compute multipliers and closing the loop. This post separates verified disclosures from extrapolation.
- Gemini 4 Hydrogen: What Google Staff Testing Claims vs. What Is Public →
On November 11, 2026, Business Insider reported that Google employees are testing an internal Gemini 4 model called Hydrogen on the Jetski platform. Google declined comment and no Hydrogen model id appears in public API docs. This post separates staff-test claims from shipping facts.
- AI Labs Raise Prices Without Raising Prices: Output-Token Inflation Explained →
Playcode founder Ruslan Ianberdin argues frontier vendors keep list prices flat while models consume more output tokens on the same task. His November 2026 post adds fresh Fable 5.2 numbers after Anthropic cut per-token rates 20 percent. Here is the methodology and how to verify it on your own API keys.
- Anthropic Launches IPO Roadshow: 825M Shares at $70–$78, Ticker ANT →
On November 10, 2026, Anthropic announced the roadshow for its proposed IPO: 825 million Class A shares, an expected price of $70 to $78, and a Nasdaq listing under ANT. This post lays out the official terms, the dollar math, how they differ from the retracted banker email, and what changes for people who build on Claude.