AI Models Index tracks 178 releases with verified public release dates and...

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

AI Models Index tracks 178 releases with verified public release dates and blind-vote checks, so teams can compare model changes before upgrading. Results show 56% improved, helping you weigh likely gains against the risk of switching.