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

https://aged-wiki.win/index.php/Why_Are_Waitlists_and_Trusted_Tester_Programs_Excluded_from_Release_Dates%3F

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 development speeds improving by 56%, with some models like GPT-5