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

https://city-wiki.win/index.php/How_Many_Releases_Does_the_October_4,_2026_Edition_Track%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