Simon Willison’s Weblog

London 2.0 RC 5, Wednesday May 3rd. Last one was a ton of fun, with some great demos.

Posted 18th April 2006 at 2:10 pm

Recent articles

The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025
LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025

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