Simon Willison’s Weblog

Understanding JSON Schema (via) Useful, comprehensive short book guide to JSON Schema, which finally helped me feel like I fully understand the specification.

Posted 24th March 2021 at 2:57 am

Recent articles

The last six months in LLMs, illustrated by pelicans on bicycles - 6th June 2025
Tips on prompting ChatGPT for UK technology secretary Peter Kyle - 3rd June 2025
How often do LLMs snitch? Recreating Theo's SnitchBench with LLM - 31st May 2025

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