User suspects Codex silently downgrades GPT-6 Astra to an older model under load
A $100 Pro user reports GPT-6 Astra degrading mid-session and identifying itself as GPT-5.0, suspecting Codex silently routes heavy-load sessions to GPT-5.6.
🚨Is Codex secretly switching you to an older model mid-session? I'm using GPT-6 Astra on Ultra, but sometimes its performance suddenly drops, and it starts forgetting even the most basic steps. When I asked GPT-6 Astra which model it was running on, it claimed to be based on GPT-5.0. However, when I switched to GPT-6.1 Sol Ultra and asked the exact same question, it said it was based on GPT-6. This makes me wonder whether Codex silently switches users from GPT-6 Astra to GPT-5.6 when server load gets too high, without notifying them. What's even stranger is that this usually happens during longer sessions. At the beginning of a session, GPT-6 Astra identifies itself as being based on GPT-6, but after working for a while, the answers become noticeably worse. I'm currently on the $100 Pro plan, so I'd expect more consistency. Could Codex be routing users to a different model under heavy load, or is something else going on here?
This post quotes another post: x.com/codexresets_/status/2113084819693273337