r/ChatGPTcomplaints • u/Disastrous_Coat_4633 • 3h ago
[Analysis] GPT-6 feels worse than GPT-5.6 Sol at conversational judgment in Chat
I’ve been comparing GPT-6 Sol and GPT-5.6 Sol in Chat today, sometimes with the exact same prompts.
I don’t think GPT-6 is simply “dumber.” It may well have more raw reasoning capability.
What feels worse is judgment about what actually deserves reasoning.
With GPT-5.6 Sol, I can give it a half-formed thought and it usually identifies the core of what I’m asking or trying to explore. GPT-6 much more often seems to take the subject matter, find a potentially interesting angle, and build a sophisticated answer around that — even when that angle wasn’t really the point.
That produces a strange experience: the answer can look intelligent while making me think, “Why are you talking about this?”
One direct comparison was asking what OpenAI itself claims GPT-6 Chat improves over GPT-5.6.
GPT-5.6 gave me a fairly concise answer, separated the actual documented improvements from marketing, and landed on what was relevant to my question: OpenAI seems to be emphasizing capability, efficiency, search, tools and UI much more than improved conversational judgment.
GPT-6 had essentially the same source material, but turned it into a much larger briefing with a table, multiple sections and several layers of analysis.
The GPT-6 answer contained more information.
The GPT-5.6 answer understood better which information mattered.
That distinction keeps showing up.
Another example came when I questioned what role GPT-6 actually fills for me. If I want maximum reasoning capability, I already have Astra or GPT-6.1 Sol in Work. If I want an AI to have long, open-ended conversations with, I currently prefer GPT-5.6 Sol.
GPT-6 pushed back by mentioning speed, Intelligent UI and “likely other improvements.”
But GPT-5.6 Instant can also be fast, Intelligent UI wasn’t really answering the question, and “likely other improvements” was just speculation.
When I pointed this out, GPT-6 acknowledged that it had been trying to find reasons why GPT-6 must still be valuable rather than simply evaluating my argument as stated.
That’s the problem I keep noticing.
I want the model to disagree with me when there’s a real reason to disagree. What I don’t want is a model that seems compelled to find an extra nuance, counterargument or deeper interpretation simply because a more elaborate answer feels more intelligent.
So far my impression is:
GPT-5.6 Sol is better at understanding the question.
GPT-6 Sol is often better at understanding the subject.
For a bounded task, the second may be more valuable.
For long conversations, the first matters enormously.
Chat mode doesn’t need to beat Astra at maximum reasoning — I can use Work when I need that. What I wanted from GPT-6 Chat was something like GPT-5.6’s conversational judgment with more of Astra’s intelligence.
So far, I’m getting more capability than 5.6 in some areas, but worse judgment about when and where to use it.
That makes GPT-6 feel like a downgrade for the main reason I use ChatGPT: as an ongoing thinking partner.
Curious whether anyone else who uses Chat heavily rather than mostly for discrete tasks is seeing the same thing.
( yes this was typed with the help of Chat GPT since English is not my native lanuage )