The AI Models Index shows a clear pace and progress for 2026, with new models...

https://stateofseo.com/how-do-i-cite-the-ai-models-index-october-4-2026-edition-properly/

The AI Models Index shows a clear pace and progress for 2026, with new models arriving about every 4.5 days. Most updates bring improvements—56% of releases boost performance, while 16% cause regressions. On average, models achieve a +9