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

https://www.charliebookmarks.win/the-ai-models-index-shows-that-in-2026-new-ai-models-are-being-released-every

The AI Models Index tracks premium model releases from 15 labs since 2023, verified with accurate dates and blind-vote checks. Updated every two weeks, it shows a clear trend: release cycles have sped up to an average of 4.5 days between updates in 2026