The AI Models Index tracks premium model releases from 15 leading labs since...
https://riversinterestingthoughtss.wpsuo.com/how-bad-is-the-16-ai-regression-rate-in-2026
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