The AI Models Index shows that, on average, new AI models are released every...

https://oliviasinsightfulthoughts.novacrestiq.com/posts/how-long-does-google-take-between-announcing-and-shipping-a-model

The AI Models Index shows that, on average, new AI models are released every 4.5 days, reflecting a rapid pace of development. Among these updates, 56% improve performance while 16% regress, with a median LMArena gain of +9.3