ChatGPT on web/browser routes to GPT-4o-mini regardless of model chosen

Lots of my messages are being silently routed to GPT-4o-mini regardless of the model chosen in the model selector. Replicable on different browsers and guest profiles. Clearing cache, cookies, and using different networks don’t resolve the issue. Sporadic, persistent occurrence.

I don’t know whether it’s account-specific, A/B testing, or something else. Issue occurred once on mobile but quickly fixed itself upon starting a new conversation.

Support is as useless as always with their AI-generated responses. Could anyone offer any fix or reason?

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