Simon Willison’s Weblog

Optimizing Web Applications and Content for iPhone (via) Apple’s iPhone developer documentation.

Posted 4th July 2007 at 1:58 am

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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