The AI Models Index tracks premium model releases from 15 leading labs since...

https://uniform-wiki.win/index.php/Why_Does_the_Index_Say_LMArena_Compresses_at_the_Top_of_the_Scale%3F

The AI Models Index tracks premium model releases from 15 leading labs since 2023, verified with exact dates and blind-vote checks for accuracy. Updated every two weeks, it shows that release frequency has improved by 56%—for example, GPT-5