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

https://bravo-wiki.win/index.php/Why_Did_Google_Slow_Down_on_Premium_Model_Releases_in_2026%3F

The AI Models Index tracks premium AI releases from 15 labs since 2023, with verified launch dates and blind-vote checks to ensure reliability. Updated biweekly, it shows a 56% improvement rate between GPT-5.1 and GPT-5