The AI Models Index shows that in 2026, new AI releases are arriving every 4.5...

https://eduardosnicechat.publishlane.com/posts/how-do-you-define-a-premium-ai-model-release

The AI Models Index shows that in 2026, new AI releases are arriving every 4.5 days on average, with 56% of updates improving performance. However, 16% of changes cause regressions, highlighting ongoing challenges. The median LMArena gain sits at +9