The AI Models Index sheds light on the pace and progress of AI releases in...

https://highstylife.com/why-are-lmarena-gains-smaller-in-2026-than-2025/

The AI Models Index sheds light on the pace and progress of AI releases in 2026, showing a new model arrives every 4.5 days on average. Despite a 56% improvement rate, 16% of updates cause regressions. The median performance gain across models is +9