The AI Models Index tracks the pace and performance of AI releases, showing...

https://oliviasinsightfulthoughts.novacrestiq.com/posts/did-deepseek-really-slow-down-in-2026-or-is-it-just-my-impression

The AI Models Index tracks the pace and performance of AI releases, showing we’re seeing a new version every 4.5 days on average. While 56% of these updates improve model capabilities, 16% actually cause regressions