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

https://josuesbestword.quillnesty.com/posts/what-does-a-56-improvement-rate-mean-for-ai-upgrades

The AI Models Index tracks the pace and quality of AI releases, showing that updates come every 4.5 days on average. Between now and 2026, 56% of model updates improve performance, but 16% actually cause regressions. On median, models gain about +9