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

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

The AI Models Index tracks premium model releases from 15 leading labs since 2023, with verified dates and blind-vote checks to ensure accuracy. Updated every two weeks, it shows a 56% faster release rate on average—like how GPT-5.2 rolled out just 4