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

https://super-wiki.win/index.php/How_Does_the_Index_Define_a_%22Real_Step%22_vs_a_%22Big_Step%22_in_LLM_Progress%3F

The AI Models Index keeps tabs on premium model releases from 15 labs since 2023, verifying each with release dates and blind-vote checks. Updated every two weeks, it shows a steady pace—new versions drop every 4.5 days on average in 2026