Jev, TypeSafe AI's structured output model, has become the fastest-adopted model in the history of Vercel's AI Gateway. In just 24 hours, nearly 13% of team accounts were using the system—surpassing GPT-5.6 and Fable 5.1, which each reached below 7% adoption in the same timeframe when they launched on the platform.
Unlike traditional large language models that generate plain text responses, Jev produces output in structured formats optimized for machine processing. This architectural difference translates to dramatic performance gains: according to TypeSafe AI, Jev is up to 194 times faster and 445 times cheaper than comparable alternatives.
The model is available free on Vercel's AI Gateway through Friday, making it an opportune moment to test structured output generation for production workloads.