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

https://highstylife.com/why-are-lmarena-gains-smaller-in-2026-than-2025/

The AI Models Index shows that in 2026, new AI models are being released roughly every 4.5 days. Despite a 16% regression rate, there’s a 56% chance each update improves performance, with a median gain of +9.3 on LMArena benchmarks