The AI Models Index tracks premium model releases from 15 labs since 2023, with...

https://speedy-wiki.win/index.php/How_Many_2026_Releases_Did_Research_Tools_Miss_in_the_Test%3F

The AI Models Index tracks premium model releases from 15 labs since 2023, with verified dates and blind-vote checks for accuracy. Updated every two weeks, it shows how quickly improvements happen—like GPT-5.2 beating GPT-5.1 by a 56% performance gain