The AI Models Index shows that in 2026, new AI versions are rolling out every...

https://cashsbrilliantperspectives.cavandoragh.org/what-does-release-date-is-first-public-use-mean-for-paid-tiers

The AI Models Index shows that in 2026, new AI versions are rolling out every 4.5 days on average. About 56% of these updates bring improvements, while 16% cause performance regressions. Overall, models gain a median 9.3 points on LMArena benchmarks