The AI Models Index tracks the pace and quality of AI releases, showing we now...

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

The AI Models Index tracks the pace and quality of AI releases, showing we now see a new model every 4.5 days on average. From recent data, 56% of updates improve performance while 16% cause regressions. Overall, the median gain in benchmark scores is +9