Jev becomes Vercel's fastest-adopted AI model ever

Vercel data shows Jev, launched September 15 by Typesafe AI, was used by 35% of paid teams within two weeks — nearly double the reach of Sonnet 5.5. The lightweight decision model picks between pre-determined outputs, making it cheaper and faster for classifying large data volumes. Open-source models now account for over 70% of tokens through Vercel's gateway.

• Jev used by 35% of Vercel paid teams two weeks after launch
• Jev's reach nearly double that of Sonnet 5.5
• Open-source models drive over 70% of tokens and ~25% of spend on Vercel gateway
• Spending on frontier labs grew ten-fold