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

https://garrettwigp625.tearosediner.net/what-is-openai-s-expected-next-premium-release-window-in-the-timeline

The AI Models Index tracks 178 model releases with verified public release dates and blind-vote checks, so you can compare changes without relying on launch claims. Its 56% improvement rate helps you judge whether an upgrade is worth retesting.