I hang around the OpenAI forum every day. The common sentiment this month is the opposite - ChatGPT v4 is worse, and v3.5 is actually better for many use cases.

I hang around the OpenAI forum every day. The common sentiment this month is the opposite - ChatGPT v4 is worse, and v3.5 is actually better for many use cases. 3.5 handles roughly double the input tokens, so it's a lot better for programming and seems to be better at holding long conversations too. There still are message limits too, it's just double.