Simon Willison’s Weblog

S5: A Simple Standards-Based Slide Show System (via) If you haven’t checked it out yet, do so. It’s great.

Posted 18th November 2004 at 9:39 pm

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GPT-5: Key characteristics, pricing and model card - 7th August 2025
OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025

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