Simon Willison’s Weblog

del.icio.us/help/navigation. So that’s what the input boxes in the nav are for.

Posted 22nd November 2005 at 8:04 pm

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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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