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

https://rileysnewcolumn.readspirex.com/posts/is-waiting-46-to-90-days-actually-better-for-ai-upgrades

The AI Models Index keeps tabs on premium model releases from 15 labs since 2023, with verified launch dates and blind-vote quality checks. Updated every two weeks, it shows the pace of innovation — like GPT-5.2 rolling out just 4.5 days after GPT-5