Use Jev from TypeSafe AI with AI SDK's experimental evaluate API to classify, route, score, and verify inside your application. Jev returns typed choices, scores, and boolean probabilities through AI Gateway.
Moderate product reviews for an e-commerce storefront with Jev from TypeSafe AI and TanStack AI's decide() function. The @tanstack/ai-vercel-gateway adapter returns typed choices, scores, and boolean probabilities through Vercel AI Gateway, so your code can publish clear reviews and hold flagged ones.
Route form submissions to the right team with the Jev x AI SDK Form Router template. Jev routes clear cases and a fallback model decides uncertain ones.
Use Jev to review tool calls in eve, allow routine actions, and request human approval when needed. Configure the policy and test its failure paths.
Jev is TypeSafe AI's System One model, built to return typed decisions with probabilities from supplied state and questions.
Explore seven Jev use cases, including form routing, ticket prioritization, tool approvals, document classification, and response evaluation.
Explore six ways to integrate Jev, including AI SDK, TanStack AI, Cloudflare, LangChain, eve, and TypeSafe's SDKs and HTTP API.
Compare TypeSafe AI Jev and GPT-6 Astra for classification, structured outputs, and agent workflows, with a shared AI SDK example.
Choose Jev for bounded decisions, code for fixed rules, and a generative model for prose. Compare workload fit and plan an evaluation.
Place Jev in an AI agent loop for bounded decisions, while application code controls tool permissions, execution, and state updates.
Interpret Jev's probabilities, confidence, and scores, then test decision thresholds against the cost of mistakes in your application.