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

https://touch-wiki.win/index.php/Did_OpenAI_Claim_GPT-5.2_Improved_Coding_and_Tools_Anyway%3F

The AI Models Index tracks premium model releases from 15 labs since 2023, verifying dates with blind-vote checks and updating every two weeks. On average, new versions arrive every 4.5 days—a 56% faster pace than before