Am I the only one who finds new GPT4o update much worse?

About 2-3 days days back my GPT account announced that GPT4o would switch to upgraded output. But since this took place I find the output has worsened a lot, and become much less reliable than ever with a lot of imaginary and fictional statements. I have to keep asking it to redo tasks again and again. It’s worsened so much I even considered to end using GPT and switch to Claude or another service.

I am frustrated with this because I was just working on an important project which was going very well, and now suddenly I get Mickey Mouse output from GPT that degrades all the work. I don’t feel I can trust anything coming out of it.

Am I the only one noticing this?

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It stopped yesterday. They rolled back.

Sycophancy in GPT-4o / OpenAI News 2025 - April - 29

No, I hate it. To the point that I am seriously considering cancelling my subscription.