The AI Models Index tracks premium releases from 15 leading labs since 2023,...

https://dominicksinsightfulop-ed.huicopper.com/why-do-most-labs-feel-slower-even-when-the-industry-feels-fast

The AI Models Index tracks premium releases from 15 leading labs since 2023, with verified launch dates and blind-vote accuracy checks. Updated every two weeks, it shows a 56% improvement rate between GPT-5.1 and GPT-5.2