Did OpenAI silently release a new AI model or is it a hallucination?

• Did OpenAI just do a stealth launch of a new AI model?
• Some ChatGPT users seem to think so.
• Users are reporting responses from ChatGPT that suggest it's powered by "GPT-4.5."

Some ChatGPT users are getting hyped after the chatbot told them it was running on a new AI model.

OpenAI's chatbot generated some speculation over the weekend after a number of users reported responses from ChatGPT that said it was being powered by "gpt-4.5-turbo."

It would be a pretty big deal if that were the case. Except it probably isn't.