Key facts
- Jev AI model adopted by 35% of paid teams within two weeks.
- Jev is designed as a lightweight tool for choosing between pre-determined outputs.
- Open-source models account for over 70% of tokens processed through Vercel's AI gateway.
Vercel's AI gateway data indicates that the Jev AI model has achieved the fastest adoption rate ever seen within its first two weeks. Launched in limited release on September 15, Jev was adopted by 35% of paid teams, significantly outpacing other models like Sonnet 5.5. This lightweight model, designed by Typesafe AI for rapid and cost-effective data classification, has garnered significant attention and inspired competing offerings from major AI labs. The data, published on October 16, 2026, also highlights the continued growth of open-source models, which now represent over 70% of tokens processed and nearly 25% of spending on Vercel's platform, suggesting a complementary relationship between open-source and frontier AI models.