Some notes on GPT-5.1, which is now available in the OpenAI API
The new reasoning options are interesting, but the pelican feels like a bit of a regression from GPT-5 simonwillison.net/2025/Nov/13/…
Introducing GPT-5.1 for developers
OpenAI announced GPT-5.1 yesterday, calling it a smarter, more conversational ChatGPT. Today they've added it to their API. We actually got four new models today: gpt-5.1 gpt-5.1-chat-latest gpt-5.1-codex gpt-5.1-codex-mini There …Simon Willison’s Weblog

Captain Jack Sparrow
in reply to Simon Willison • • •hopefully the wheels are about to fall off the #ai bike
#aibubble #aibubbleburst #fuckai
pancake
in reply to Simon Willison • • •