The AI Models Index keeps tabs on premium model releases from 15 top labs since...
https://victor-wiki.win/index.php/How_Does_an_LMArena_Rating_Gap_Turn_into_a_Win_Rate%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