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

https://kilo-wiki.win/index.php/Is_GPT-5.2_Actually_Worse_Than_GPT-5.1_in_Blind_Votes%3F

The AI Models Index tracks premium model releases from 15 labs since 2023, verified with exact dates and blind-vote checks. Updated every two weeks, it shows an average 4.5-day gap between releases—a 56% faster pace. See clear comparisons like GPT-5