I’m on a ChatGPT Plus account, and I’ve noticed that ChatGPT is consistently downgrading me to GPT-5.5-mini silently. The frontend says it’s using GPT-5.6, but when I check the network stream, the resolved_model_slug shows the mini model.
This is deceptive — there’s no indication of why the downgrade is happening, and support has no idea about the issue.
I’m experiencing the same issue as well, and it seems that other users are reporting similar behavior. It may be useful to share our experiences in the main discussion thread, so the full scope of the issue can be better understood and investigated.