Fine-tuned 4o errors using the responses API (with image input)
OpenAI Developer Community
February 28, 2026
Yep, Situation abnormal, same long-persisting system as happened weeks ago for weeks.
At top_p:0
- no response for minutes
- a response that has vision based text
- a constant loop of “assistant”
also: complete random inconsistent responses when the model does respond - top_p:0 not working at all to normalize the output. Have to go with temp and top p: 0.01. To get the same amount of assistant message spam until max_output_tokens.
Discussion in the ATmosphere