Simon Willison’s Weblog

Version 1 Sucks, But Ship It Anyway. I think I should probably get this tattooed on to my skull.

Posted 5th December 2009 at 5:36 pm

Recent articles

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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