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

https://www.sierrabookmarking.win/the-ai-models-index-keeps-tabs-on-premium-model-releases-from-15-labs-since

The AI Models Index tracks premium model releases from 15 labs since 2023, verifying dates and using blind-vote checks for accuracy. Updated every two weeks, it shows that in 2026, new models arrive every 4.5 days—a 56% speedup from before