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

https://penelopessmartdigests.talesignal.com/posts/how-do-i-compare-two-models-using-blind-votes-instead-of-launch-posts

The AI Models Index tracks premium model releases from 15 top AI labs since 2023, with verified release dates and blind-vote quality checks. Updated every two weeks, it shows a 56% faster release rate in 2026. For example, GPT-5.2 outpaced GPT-5