I’ve been a pro-subscriber for 4 months and was a regular subscriber since 2023. I agree that the latest upgrade seems more like a downgrade. I generally use 4.5 and o3 depending on what I’m working on. A month ago, I felt that being a pro-subscriber was worth the money and I was really productive, but now, not so much.
I’m seeing a lot more hallucinations. Not simple wrong answers or a bad source, no, in some sessions it has invented a fantasy world. In a long document it wrote 3 consecutive sentences about an event that never happened. Further along in the document it added a couple more sentences that supported and expanded on the original hallucination.
The other problem that I’m seeing most often is that it wants to jump ahead and condense any text I upload. I uploaded a technical paper having an intro, a body, a summary, and a bibliography. I said I think it might be too wordy, so let’s go through it paragraph-by-paragraph. It jumped ahead and reduced the 2000-word document to 700 words, completly removing paragraphs and sources. It even removed the summary and said it was redundant. I said that was not my instruction. It took responsibility and said it was wrong to do that and it would redo the rewrite. It then went through and reduced the size to 500 words.