A FIELD GUIDE TO JEV / VOL. 01
The best of Jev. Real projects, practical guides and ideas from across the internet.
TypeSafe AI@typesafeaiOFFICIALTypeSafe announces public access to Jev without a waiting list. The official console is the starting point for trying typed decisions in your own application.
x.comJev opens to everyoneExplore this project ↗TypeSafe AI@typesafeaiOFFICIALTypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
TypeSafe AI@typesafeaiOFFICIALTypeSafe highlights Jev’s typed-output approach: applications provide state and questions, then act on probabilities, choices or scores. The linked announcement also covers the Venice API integration.
x.comAnswers your code can useExplore this project ↗
Diogo Almeida@CompleteSkepticLAUNCH POSTDiogo Almeida introduces Jev, TypeSafe’s structured decision model. Watch the launch film and explore the original thread for the model’s approach, examples and author-reported performance.
Four official signals. A fresh starting point on each visit.
114 resources
AI-assisted summaries and translations. Check original sources for context and performance claims.
Interactive explorer and Jev question workspace for Jev Board datasets.
github.comWebGrga/jev-board-labExplore this project ↗Source-linked curation
OpenTelemetry Collector connector that uses Jev to assess metric metadata and apply retention policies before export.
github.comishantanu/jevmetricsExplore this project ↗Source-linked curation
A show-and-tell capability study for Jev, TypeSafe's System One decision model.
github.comlbotinelly/jev-little-airwaysExplore this project ↗Source-linked curation
Small Python package that uses typesafe.ai to evaluate code comments on certain heuristics.
github.comHexdigest123/typesafe-commentExplore this project ↗Source-linked curation
JevBench v1 - a benchmark for Jev-class typed decision models: smart, cheap, fast, reliable, open.
github.comfstandhartinger/jevbenchExplore this project ↗Source-linked curation
This is a LLM Gateway that mimics typesafe ai structured output. Like an imposter Jev.
github.comiammrduncan/typesafe-ai-benchmarkExplore this project ↗Source-linked curation
Semantic ifs from open models, on a 3090 at home. Independent; not affiliated with Jev or TypeSafe.
github.comTheoLeeCJ/SemIfExplore this project ↗Source-linked curation
Rust port of TypeSafe system-one-adapter (LLM-backed system_one evaluations).
github.comcodeitlikemiley/system-one-adapter-rustExplore this project ↗Source-linked curation
Vercel Labs terminal CLI that can run Jev as the evaluation model for its evaluate command.
github.comvercel-labs/ai-cliExplore this project ↗Source-linked curation
A reproduction of Jev that turns any Qwen model into a fast decision model, serving the same /v1/systemone schema (Choice, Score, Noul) with no training and no generated answer text.
github.comzhengxuyu/litjevExplore this project ↗Source-linked curation
TypeSafe AI System One (Jev) task plugin for QuantumNous/new-api — native /v1/systemone, synchronous evaluation, token billing.
github.comFFatTiger/new-api-plugin-typesafeExplore this project ↗Source-linked curation
t0t0Jev monitors 25 WhatsApp customer groups in real time, alerting an LLM only when urgent issues arise.
x.comWatching 25 customer groups on WhatsAppExplore this project ↗Source-linked curation
A research project auditing Jev's performance with the Spanish language.
github.commarcosmartinez/jev-acentoExplore this project ↗Source-linked curation
Never confidently wrong: a TLA+-verified consensus kernel around TypeSafe's Jev, run through 1,680 chaos-tested pharmacy decisions with zero wrong verdicts. Film, code, and every captured call.
github.comcopyleftdev/jev-labsExplore this project ↗Source-linked curation
TypeScript experiments, evaluations, and latency benchmarks for TypeSafe's Jev model.
github.comMenny1337/jev-labExplore this project ↗Source-linked curation
A Jev-inspired decision interface for existing LLMs. Explicit choices, scores, calibration, and review thresholds.
github.comgrishahq/decisionbridgeExplore this project ↗Source-linked curation
Can a decision model beat dedicated rerankers? TypeSafe Jev vs Cohere Rerank 4 vs ZeroEntropy zerank-2 vs a chat-model baseline: 14 datasets, every raw API response, bootstrap ranges on every gap.
github.comanessbelbati/jev-rerank-benchExplore this project ↗Source-linked curation
Papers, open reproductions and independent evaluations behind System One models and Jev.
github.comOmniJev/awesome-jev-galleryExplore this project ↗Source-linked curation
Calibrated 151M Non-Autoregressive Decision Engine beating TypeSafe Jev & Laya on LocalLLaMA/typed-decisions (77.10% acc, 0.0636 Brier, 0.0144 ECE).
github.comHeman10x-NGU/openJev-verdict-2.0Explore this project ↗Source-linked curation
A research project on GitHub conducting nine experiments and 28 predictions with fixed parameters, focusing on Jev's performance metrics.
github.comwillkelly/jev-evaluationExplore this project ↗Source-linked curation
CLI for TypeSafe AI's Jev evaluation model — typed questions in, structured JSON answers out.
github.comjtsang4/jev-cliExplore this project ↗Source-linked curation
Curated catalog of System One / Decision Models — contributions for modelsystem.one.
github.comfabricioctelles/modelsystemExplore this project ↗Source-linked curation
Jev (TypeSafe System One) × ASReview SYNERGY abstract screening demo — Choice/Noul vs gold labels.
github.comPistachioAIHQ/jev-synergy-screeningExplore this project ↗Source-linked curation
A spatial reference explorer for creators. Local Jev query choices, metadata highlights and source-linked collections.
github.comAlbionaHoti/refgardenExplore this project ↗Source-linked curation
Measures how well TypeSafe's RLCD-Jev model spots real secret credentials in file snippets.
github.comteyhouse/jev-secret-detectionExplore this project ↗Source-linked curation
Jev (TypeSafe) vs Claude Haiku 4.5 on 2 000 phishing emails: accuracy, calibration, latency, cost. Reproducible benchmark.
github.comanisselbd/jev-phishing-benchExplore this project ↗Source-linked curation
The open-source System One decision model. Sub-15ms, non-autoregressive, local drop-in alternative to TypeSafe Jev.
github.comwfzyx/vonExplore this project ↗Source-linked curation
A small, type-safe client for asking AI questions about your data, powered by TypeSafe Jev.
github.compithings/advocaatExplore this project ↗Source-linked curation
One-pass typed decisions with calibrated probabilities (System One style model), fine-tuned from Qwen3.5-2B.
github.comMapika/deciderExplore this project ↗Source-linked curation
A small second eval for shadcn-ui/lint that uses TypeSafe's Jev to judge the linter's own output.
github.comblas0/jev-shadcn-lint-evalExplore this project ↗Source-linked curation
Nushell module for the TypeSafe System One API: typed decisions with calibrated probabilities.
github.comcablehead/jev.nuExplore this project ↗Source-linked curation
A chatbot from typed Jev decisions: hierarchical speculative decoding over System One probabilities.
github.comadhyaay-karnwal/jev-chatExplore this project ↗Source-linked curation
On-device iPhone visual decision tool using MLX and Qwen3-VL direct option logits.
github.comNullPo-jp/PocketJevExplore this project ↗Source-linked curation
Independent Jev 1.13.0 behavior study: report, controlled prompt experiments, raw results, and offline verification.
github.comRINNECODER/jev-behavior-studyExplore this project ↗Source-linked curation
If you're experimenting with jev it will be easier from here.
github.comutk2103/jev-studioExplore this project ↗Source-linked curation
A stronger one-pass scorer over a variable list of text options: hashed n-gram encoder, rival-aware attention, gated head, temperature scaling, benchmarked against jevlike.
github.comolanotolu/jevbetterExplore this project ↗Source-linked curation
看看 Jev 能做什么：用中英文讲清热门应用、工作原理和各自优缺点。Explore Jev apps with plain-language examples, explanations, and comparisons.
github.comJackZeng/Jev_appsExplore this project ↗Source-linked curation
Sort by meaning: order lines along a plain-English dimension, from pairwise comparisons judged by TypeSafe's Jev model.
github.comkeltokhy/jsortExplore this project ↗Source-linked curation
Local bilingual probability decisions from context, questions, and candidate answers. Independent research preview inspired by TypeSafe Jev.
github.comzhihz/openjevExplore this project ↗Source-linked curation
Reproducible benchmark for measuring Jev reranking quality, latency, and cost in RAG.
github.comerendikmenn/jev-rag-benchmarkExplore this project ↗Source-linked curation
Experiments with openjev, an open Jev-style option-logit runner, on local models.
github.comzefir1990/openjev-experimentsExplore this project ↗Source-linked curation
An observable raw-character chat experiment powered entirely by TypeSafe Jev Choice.
github.comkesku/jev-freeformExplore this project ↗Source-linked curation
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