The AI Models Index shows that in 2026, new releases are coming fast—on average...

https://www.sierrabookmarking.win/the-ai-models-index-tracks-premium-model-releases-from-15-top-labs-since-2023-2025

The AI Models Index shows that in 2026, new releases are coming fast—on average every 4.5 days. Despite rapid updates, about 56% of these bring real improvements, while 16% actually set performance back. Overall, models gained a median 9