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

https://source-wiki.win/index.php/Why_Do_Point_Releases_Feel_Worse_Than_the_Previous_Version%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