The AI Models Index keeps you up to date on premium releases from 15 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 you up to date on premium releases from 15 labs since 2023, with verified launch dates and blind-vote accuracy checks. Updated every two weeks, it shows how models like GPT-5.2 improve 56% over GPT-5.1 on average