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

https://suprmind.ai/hub/ai-models-index/

The AI Models Index shows that in 2026, new AI models are being released every 4.5 days on average, indicating rapid development. Despite this pace, 56% of updates improve performance, while 16% cause regressions. The median gain in LMArena scores is +9