The AI Models Index keeps tabs on premium model releases from 15 labs since...

https://ellassuperinsights.opalvector.com/posts/why-did-gemini-s-lmarena-numbers-not-match-published-snapshots

The AI Models Index keeps tabs on premium model releases from 15 labs since 2023, with verified dates and blind-vote checks to ensure accuracy. Updated every two weeks, it shows releases speeding up—like a 56% improvement rate in 2026