The AI Models Index shows that in 2026, new AI releases are arriving roughly...

https://wiki-nest.win/index.php/When_Was_GPT-6.1_Sol_Released%3F_A_Data-Driven_Look_at_the_Sep_29,_2026_Launch

The AI Models Index shows that in 2026, new AI releases are arriving roughly every 4.5 days. While 56% of updates bring improvements, about 16% cause performance regressions. Overall, the median gain in LMArena benchmarks is +9