I am a paying chatgpt and codex user and I am logged in on multiple devices and suddenly https://chatgpt.com/ has started returning a raw 404 status page with no HTML for me in the browsers on all devices. When I open an incognito tab the website loads fine with no user logged in. Codex in VS code also has issues now:

> unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: ...

Glad to see this thread I thought my account may need some special fix

YES! I swear I thought something malicious was happening, especially because Claude went down at the same time. https://status.openai.com was totally unhelpful, making me more suspicious.

My Pro logged in account works, but my other Plus logged in account returns 404.

same here