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

https://juliet-wiki.win/index.php/User_Complaints_about_GPT-5.2_Writing_Style:_A_Detailed_Analysis

The AI Models Index tracks premium model releases from 15 leading labs since 2023, with verified dates and blind-vote accuracy checks. Updated every two weeks, it shows development speeds improving—like a 56% faster release pace in 2026