Pick one option
Select from a known set and return probabilities with confidence.
Discover 110 new open-source Jev projects added today to bestjev, with verified GitHub repositories, languages, stars, and implementation details.
AI gateway with a TypeSafe guardrail and Jev classifier for policy judgments and complexity-based request routing.
Coding agent with a TypeSafe judgment provider that uses Jev for typed checks, routing, and workflow decisions.
Claude Code configuration toolkit shipping Jev-based model routing, skill suggestion, and tool guardrail modules.
Computer-use platform with a Jev recipe where the model selects one bounded action candidate and the client validates it before execution.
Generative UI framework with an experimental evaluator that lets Jev choose among application-supplied composition criteria.
Android conversation copilot where Jev interprets chat context and helps rank candidate replies before the user inserts one.
Desktop automation runtime with a Jev skill that chooses UI operations and targets from accessibility-tree candidates.
Laravel AI SDK with a TypeSafe provider for Jev Choice, Score, and Noul classification requests.
Agent-computer platform with a runnable pull-request review lab where Jev judges whether findings are introduced, supported, and actionable.
Agent memory library with an optional Jev reranker that judges which retrieved memories are relevant.
Conversational-avatar framework with a Jev gate that judges whether a speaker has finished a turn.
Awesome Jev: a source-backed field guide to TypeSafe's System One model, with SDKs, live demos, agent tools, and independent evaluations.
An awesome collection of Jev use cases, workflows, and agent skills.
The open, local take on Jev: typed decisions from an LLM, without generating a single token
Agent plugin that uses Jev to judge when a coding session should compact its context.
DiffusionGemma NVFP4 structured decisions on a DGX Spark: container recipe No repository-level license file was found during review.
bestjev is an independent, community-maintained directory of open-source projects built around Jev, TypeSafe AI's System One model for typed decisions.
Each listing links to its original repository and records its category, primary language, GitHub star snapshot, and a localized description, helping developers find verifiable Jev SDKs, agents, integrations, applications, research, and tools.
bestjev is not affiliated with or endorsed by TypeSafe AI.
Jev is TypeSafe AI's System One model for decisions that software needs to consume. Instead of generating free-form prose, it accepts a state and one or more typed questions, then returns structured answers with calibrated probabilities.
It fits workflows where the option space or scoring rubric is known in advance: routing an agent, validating a tool call, ranking candidates, checking a policy, or deciding whether an action should proceed.
Applications can set deterministic thresholds, inspect uncertainty, and route low-confidence cases to a person or a larger model.
Select from a known set and return probabilities with confidence.
Place an input on an ordered scale with a full distribution.
Return the probability that a statement is true, from zero to one.
Each entry is checked against public evidence: the upstream repository, project-authored documentation, and visible Jev usage. Stars are a dated discovery snapshot, not a quality ranking.
“Think of Jev as a frontier-intelligence function call: unstructured state in, typed probabilistic decisions out.”— TypeSafe AI, introducing Jev
Know a public project that uses Jev? Send us its repository and the evidence needed to verify it. Submissions are reviewed before they appear in the catalog.
Submit a projectOpens a pre-filled GitHub issue.Provide the public GitHub URL and a concise description of what the project does.
Link to code, documentation, a demo, or another public source that makes the Jev integration verifiable.
We verify the evidence, choose the right category, and add accepted projects in a future catalog update.