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

https://www.bookmark-friend.win/the-ai-models-index-tracks-premium-ai-releases-from-15-top-labs-since-2023

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