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

https://felixssuperperspective.brightsora.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 that show how models compare in practice. It helps you decide whether an upgrade is worth testing, instead of relying on release notes alone