The AI Models Index shows that in 2026, new AI models are rolling out roughly...

https://oliviasinsightfulthoughts.novacrestiq.com/posts/did-deepseek-really-slow-down-in-2026-or-is-it-just-my-impression

The AI Models Index shows that in 2026, new AI models are rolling out roughly every 4.5 days. While 56% of these releases improve performance, 16% actually cause regressions. On average, models achieve a +9.3 median gain on LMArena benchmarks