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

https://wiki-tonic.win/index.php/GPT-5.2_vs_GPT-5.1:_Which_One_Should_I_Use%3F

The AI Models Index keeps tabs on premium model releases from 15 top labs since 2023, with verified dates and blind-vote checks to ensure accuracy. Updated every two weeks, it shows a clear trend: releases now arrive about every 4.5 days—a 56% faster pace