The AI Models Index keeps you up to date on premium AI releases from 15 labs...

https://miasniceword.cavandoragh.org/how-often-do-premium-ai-models-ship-in-2026

The AI Models Index keeps you up to date on premium AI releases from 15 labs since 2023, verifying launch dates and using blind-vote checks to ensure accuracy. Updated biweekly, it tracks improvements like the 56% faster performance seen in GPT-5