Before You Blame the Model, Check the Stack

On September 3, 2026, OpenAI began rolling out GPT-6 Astra. Within days, some developers were reporting what one of them called a "post-launch lobotomy." An open issue in OpenAI's Codex repository, filed by one developer, described turns ending after about 30 seconds and completion reports for work that had never been done.

Others said they had gone back to the previous model, GPT-5.6 Sol. These were reports, not a diagnosis. As of mid-October, OpenAI had not publicly explained those reports, and nobody outside the company could say what, if anything, had changed.

Two months earlier, users had made the same complaint about Sol, and that time there was an answer of sorts. A widely circulated postattributed to OpenAI's Thibault Sottiaux denied Sol had been weakened but said the team had run and reverted experiments that changed its reasoning effort: roughly how much computation the model spends before it...

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