Simon Willison’s Weblog

MSFT and Yahoo: two icebergs, roped together. Yahoo!’s engineering platform and culture is Open Source pretty much all the way down. Microsoft’s isn’t. I wonder how that would pan out.

Posted 4th May 2007 at 5:50 pm

Recent articles

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025
Useful patterns for building HTML tools - 10th December 2025

microsoft 126 open-source 278 yahoo 107

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