Simon Willison’s Weblog

I've (probably) been using Google App Engine for a week longer than you have. My snappily titled App Engine introduction, presented at BarCamp London 4.

Posted 1st June 2008 at 3:02 am

Recent articles

The surprise deprecation of GPT-4o for ChatGPT consumers - 8th August 2025
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

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