https://www.cnbc.com/2025/08/19/sam-altman-on-gpt-6-people-want-memory.html

Sounds like gpt 6 won't be very mindblowing, they're not gonna sit and wait for any huge breakthroughs like they tried to do with gpt 5

I think they will first need to do some 5.1, 5-mini, 5-feeling, so on...