The AI Models Index shows that in 2026, new AI releases are happening every 4.5...

https://www.random-bookmarks.win/the-ai-models-index-tracks-premium-model-releases-from-15-top-labs-since-2023

The AI Models Index shows that in 2026, new AI releases are happening every 4.5 days on average. Of these, 56% bring measurable improvements, while 16% actually regress in performance. Across updates, the median LMArena score increased by 9