The AI Models Index tracks premium model releases from 15 leading labs since...
https://highstylife.com/what-model-had-the-longest-single-reign-at-1-in-2026/
The AI Models Index tracks premium model releases from 15 leading labs since 2023, verifying release dates and using blind-vote checks for accuracy. Updated every two weeks, it shows the pace speeding up—like GPT-5.2 launching just 4.5 days after GPT-5