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

https://acornmetric.com/s/K_VpITpG4qt0XHtVrH9k4

The AI Models Index shows that in 2026, new AI models are being released roughly every 4.5 days. While 56% of these updates improve performance, 16% actually cause regressions. Overall, the median gain on LMArena benchmarks is +9