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

https://stateofseo.com/how-do-i-cite-the-ai-models-index-october-4-2026-edition-properly/

The AI Models Index tracks premium releases from 15 leading labs since 2023, with verified dates and blind-vote accuracy checks. Updated every two weeks, it shows average release cycles improving by 56%, now just 4.5 days apart