The AI Models Index keeps tabs on premium releases from 15 leading labs since...

https://fast-wiki.win/index.php/How_Do_I_Tell_if_an_AI_Model_Was_Announced_or_Really_Shipped%3F

The AI Models Index keeps tabs on premium releases from 15 leading labs since 2023, verifying dates and using blind-vote checks for accuracy. Updated biweekly, it shows model improvements happening about every 4.5 days—a 56% faster pace than before