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

https://brookssniceop-ed.bearsfanteamshop.com/what-was-the-biggest-ai-model-regression-measured

The AI Models Index shows that, in 2026, new AI models are released every 4.5 days on average. While 56% of these updates bring measurable improvements, 16% lead to performance regressions. Overall, median gains on the LMArena benchmark stand at +9