The AI Models Index keeps tabs on premium releases from 15 top labs since 2023,...

https://hectorraaz187.lowescouponn.com/how-does-the-index-define-a-real-step-vs-a-big-step-in-ai-model-evolution

The AI Models Index keeps tabs on premium releases from 15 top labs since 2023, with verified dates and blind-vote accuracy checks. Updated every two weeks, it shows a 56% improvement rate between GPT-5.1 and GPT-5