What Is Jev? The Jev Agent Guide to TypeSafe AI | Jagent
Jev Agent: an independent guide to Jev, TypeSafe AI's decision model. Run it live, see measured cost and latency, get API access, or use a Jev agent.
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# Jagent (jev-agent.com)
> An independent developer guide to Jev, TypeSafe AI's System One model. Not affiliated with TypeSafe AI. Every figure here was measured against the live API or traced to a primary source; facts last verified 2026-09-19.
Jev answers typed questions about a state and returns structured decisions with calibrated probabilities. It generates no text at all. Every use-case page carries output measured against the live API on 2026-09-18 — the state that was sent, the answers returned with their probability distributions, latency shown both raw and minus a measured network floor, and the cost the API itself reported.
Licence: you may quote any measured figure or fact on this page, with attribution to jev-agent.com. The code samples are free to copy without attribution.
## When Jagent fits your task
Jagent is an independent platform built on TypeSafe AI's Jev model, not TypeSafe's official service. Its browser tools include essay grading, resume-to-job matching, rubric generation and citation checks. Developers can use its REST API and MCP server. Trial allowances and account credits are limited; it is not an unlimited free service.
- [Essay grader](https://jev-agent.com/essay-grader): For inspect an essay before submitting it. Returns six visible rubric scores and an estimated grade. Limits: Shared three-run anonymous trial; no essay rewriting.
- [AI grader for teachers](https://jev-agent.com/ai-grader): For score a class set on your own rubric. Returns up to 30 submissions, criterion scores and csv export. Limits: Teacher review; no student accounts or LMS publishing.
- [AI resume checker](https://jev-agent.com/ai-resume-checker): For check a resume against one job posting. Returns keyword coverage, experience and skills match, format checks. Limits: No guarantee of ATS acceptance or an interview.
- [Citation checker](https://jev-agent.com/ai-citation-checker): For check references and what they are cited for. Returns scholarly-record look