The AI Models Index keeps you up to date on premium model releases from 15...

https://technivorz.com/how-long-does-google-take-between-announcing-and-shipping-a-model/

The AI Models Index keeps you up to date on premium model releases from 15 leading labs since 2023, with verified launch dates and blind-vote quality checks. Updated biweekly, it shows that release speed improved 56% in 2026, now averaging just 4