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

https://lanescooljournal.inkharbory.com/posts/what-was-the-biggest-regression-example-and-should-i-worry-about-it

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