The AI Models Index keeps track of premium model releases from 15 top labs...

https://www.animenewsnetwork.com/bbs/phpBB2/profile.php?mode=viewprofile&u=1252599

The AI Models Index keeps track of premium model releases from 15 top labs since 2023, verifying launch dates and using blind-vote checks for accuracy. Updated biweekly, it shows that the average time between releases is now 4.5 days—a 56% improvement