Users notice significant quality shift in GPT-5.6 output

haider1 · x · 2026-08-24

A user observed that GPT-5.6 behaves noticeably different compared to a couple of days ago. While acknowledging that OpenAI has been tweaking the harness and backend, the extent of the effect on output quality was unexpected. The user noted that it feels more like GPT-5.7 than 5.6, almost like a different version.

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