The AI Models Index shows that, in 2026, new AI models are released every 4.5...

https://www.tool-bookmarks.win/the-ai-models-index-keeps-you-up-to-date-on-premium-model-releases-from-15

The AI Models Index shows that, in 2026, new AI models are released every 4.5 days on average. While 56% of these updates bring measurable improvements, 16% lead to performance regressions. Overall, median gains on the LMArena benchmark stand at +9