The AI Models Index shows that in 2026, new models are released every 4.5 days...

https://holy-anorak-0e9.notion.site/The-AI-Models-Index-shows-that-new-AI-releases-are-coming-fast-on-average-every-3f4acaeef24e80659048ffc39304a5c6

The AI Models Index shows that in 2026, new models are released every 4.5 days on average. While 56% of these updates bring measurable improvements, about 16% actually cause regressions. The median gain in LMArena scores is +9