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

https://jaspersmasterinsights.opalvector.com/posts/why-do-ai-version-numbers-keep-going-up-but-quality-barely-moves

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 model improvements happen every 4.5 days on average—a 56% faster rate