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

https://lanesniceblog.scriblorax.com/posts/which-deep-research-ai-was-best-at-finding-correct-release-dates

The AI Models Index tracks premium releases from 15 top labs since 2023, with verified dates and blind-vote accuracy checks. Updated every two weeks, it reveals releases come faster—GPT-5.2 followed GPT-5.1 by just 4.5 days, a 56% improvement in speed