The AI Models Index tracks 178 model releases with verified public release...

https://oliviasinsightfulthoughts.novacrestiq.com/posts/what-is-anthropic-s-release-cadence-in-2026-and-how-many-releases

The AI Models Index tracks 178 model releases with verified public release dates and blind-vote checks, so you can compare real-world results instead of relying on launch claims