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

https://deansinspiringperspective.hexaforgey.com/posts/which-models-were-added-in-the-october-4-2026-edition

The AI Models Index tracks premium AI model releases from 15 labs since 2023, verifying dates and applying blind-vote checks for accuracy. Updated every two weeks, it shows the pace is quickening—models like GPT-5.2 launch just 4.5 days after GPT-5