Simon Willison’s Weblog

ITA Software Trip Planner. Super nerdy flight booking search site, operated by the company that provides software to everyone else in the industry.

Posted 4th June 2007 at 10:14 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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