The AI Models Index tracks premium model releases from 15 labs since 2023, with...

https://josuesbestword.quillnesty.com/posts/what-does-a-56-improvement-rate-mean-for-ai-upgrades

The AI Models Index tracks premium model releases from 15 labs since 2023, with verified dates and blind-vote accuracy checks. Updated every two weeks, it shows release speed improving by 56%, averaging a new version every 4.5 days