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

https://fair-wiki.win/index.php/How_Many_Releases_Does_the_October_4,_2026_Edition_Track%3F

The AI Models Index keeps tabs on premium model releases from 15 top labs since 2023, verifying dates and using blind-vote checks for accuracy. Updated every two weeks, it shows release cadences improving — like GPT-5.2 launching just 4.5 days after GPT-5