The AI Models Index brings model releases, verified public release dates, and...

https://bizzmarkblog.com/what-counts-as-a-premium-ai-model-release-in-this-index/

The AI Models Index brings model releases, verified public release dates, and blind-vote checks into one place, so you can compare versions before upgrading. It tracks 178 releases and shows how often newer versions improve or regress in blind comparisons