The AI Models Index shows that in 2026, new AI releases are arriving roughly...

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

The AI Models Index shows that in 2026, new AI releases are arriving roughly every 4.5 days. While 56% of updates bring improvements, about 16% cause performance regressions. Overall, the median gain in LMArena benchmarks is +9