The AI Models Index shows we’re seeing new AI releases every 4.5 days on...

https://josuesbestword.quillnesty.com/posts/why-did-grok-have-multiple-regressions-in-2026

The AI Models Index shows we’re seeing new AI releases every 4.5 days on average in 2026. About 56% of these updates bring genuine improvements, while 16% result in setbacks. The median performance gain on LMArena benchmarks is +9.3 points