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

https://highstylife.com/why-are-lmarena-gains-smaller-in-2026-than-2025/

The AI Models Index tracks premium AI model releases from 15 labs since 2023, verifying dates and using blind-vote checks to ensure accuracy. Updated every two weeks, it shows a 56% improvement rate in model performance