TypeSafe steps out of stealth
TypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
A FIELD GUIDE TO JEV / VOL. 01
Лучшее о Jev: реальные проекты, практические руководства и идеи со всего интернета.
TypeSafe’s official launch announcement introduces the lab and points builders to Jev. It includes Diogo Almeida’s launch film and original introduction.
TypeSafe 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 everyoneПодробнее о проекте ↗Diogo 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.
TypeSafe 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 useПодробнее о проекте ↗Four official signals. A fresh starting point on each visit.
95 материалов
AI-assisted summaries and translations. Check original sources for context and performance claims.
Independent, evidence-based map of when TypeSafe's Jev actually holds up vs. breaks down — real API-call receipts, not a leaderboard. 中文為主的雙語 repo。

Source-linked curation
A research project featuring an English–Icelandic dictionary that uses Jev to rerank results for better accuracy.

Source-linked curation
Evidence-backed index of real-world Jev (TypeSafe AI System One) use cases: repos, patterns, benchmarks, and measured results.
github.comanandi1989/awesome-jev-usecasesПодробнее о проекте ↗Source-linked curation
End-to-end Jev-style structured-decision stack for auditable data construction, Qwen3.5-0.8B training, fixed Mind2Web and OOD evaluation, preliminary RLCD, local serving, and interactive replay.
github.comzwliJay/jev-forgeПодробнее о проекте ↗Source-linked curation
Can Jev pick the winner of a real headline A/B test? 64.5% across 10,984 Upworthy randomized experiments, 74.7% when the difference was decisive.
github.comGaurav-Gosain/jev-headline-benchПодробнее о проекте ↗Source-linked curation
Batched single-token choice inference for open language models, compatible with TypeSafe.
github.comsgoedecke/system-oneПодробнее о проекте ↗Source-linked curation
Catch breaking API behavior hidden in OpenAPI prose with deterministic checks and TypeSafe JEV System One semantic review.
github.comShuhanSun/jev-oas-sentinelПодробнее о проекте ↗Source-linked curation
Find, design, and evaluate TypeSafe Jev decision loops.
github.comkaranb192/jev-architectПодробнее о проекте ↗Source-linked curation
See what Jev thinks about your SaaS website — powered by ReplyNodes web context and Vercel AI Gateway.
github.comreplynodes/jev-web-analyzerПодробнее о проекте ↗Source-linked curation
Probability-aware evaluation for typed decision models: calibration, selective risk, latency, and reproducible benchmarks.
github.comAbdelStark/jev-benchmarksПодробнее о проекте ↗Source-linked curation
Offline Obsidian search with optional Jev reranking of results, requiring user approval before reranking.

Source-linked curation
Open, Jev-compatible System One decision server on DiffusionGemma.
github.comrazorback16/openjevПодробнее о проекте ↗Source-linked curation
A small reproducible MuJoCo pilot comparing Jev, Claude Haiku, and reactive rules for pick-and-place.
github.comtryaksh/jev-pick-and-place-studyПодробнее о проекте ↗Source-linked curation
Open replica of TypeSafe's Jev: typed calibrated decisions in one forward pass, on Gemma 4 E2B / Gemma 3 270M (Modal).
github.commithalouni/system-one-openПодробнее о проекте ↗Source-linked curation
Jev-compatible System 开源Jev.
github.comGPT-AGI/OpenJevПодробнее о проекте ↗Source-linked curation
发明 RLHF 的人,这次做了个不会说话的模型:Jev 独立研究报告。52 页 PDF + 50 条中文实测复现包 + 143 条可回溯数据表.
github.comHackSing/jev-reportПодробнее о проекте ↗Source-linked curation
Open-source BYOK arena for Jev and other AI judges. Find failures, compare quality, cost, and latency.
github.comchenmingtang830/jevarenaПодробнее о проекте ↗Source-linked curation
Semantic test matchers for Vitest and Jest, powered by TypeSafe's Jev model. Write expectations in plain English, get calibrated probabilities back.
github.comrealZachi/jevtestПодробнее о проекте ↗Source-linked curation
A chatbot built on a model that cannot generate text (TypeSafe AI's Jev, driven autoregressively).
github.comBewinxed/jevgptПодробнее о проекте ↗Source-linked curation
Independent calibration test of TypeSafe's Jev on a task it cannot have seen: 900 rule-generated support tickets (choice / score / boolean) plus 3 public benchmarks via Vercel AI Gateway. Raw responses, ECE with noise floor, temperature refit, per-type sign of miscalibration. Reproducible for ~$0.06.
github.comscienthoon/jev-ood-calibrationПодробнее о проекте ↗Source-linked curation
Using Jev as an evaluator.
github.comdanielgshea/jev-as-a-judgeПодробнее о проекте ↗Source-linked curation
Ongoing Japanese research deck on Jev and System One models, maintained as Markdown slides.
github.commyokoym/misereru-slide-jevПодробнее о проекте ↗Source-linked curation
Jev 1.13 reward-model evaluation across 8 benchmark tracks, with an interactive report and 54-row SOTA comparison.
github.comgoya4140/jev-reward-model-evaluationПодробнее о проекте ↗Source-linked curation
Feedback on your paper in seconds.
github.comJacobLinCool/jev-paper-judgeПодробнее о проекте ↗Source-linked curation
Open alternative to Jev: typed, calibrated decisions from any open-weights LLM in one forward pass (HF + vLLM), with benchmarks.

Source-linked curation
A small open decision model: state + typed questions -> calibrated probabilities. A Jev / System One re-creation on Qwen3.5.

Source-linked curation
Jev vs Gemini 3.8 Flash: labelling 1,000 app reviews, 4.1× faster and 7× cheaper.
github.comgoodrahstar/jev-column-raceПодробнее о проекте ↗Source-linked curation
Reproducible early-access evaluation of Jev on Korean understanding and medical text, with runtime and cost evidence.
github.commahlernim/jev-korean-benchmarkПодробнее о проекте ↗Source-linked curation
I tortured Jev into being a RISC-V CPU.
github.comi2cjak/RISC-jeVПодробнее о проекте ↗Source-linked curation
A word-level language model whose output layer is Jev: n-gram drafter, Noul chunk verification, bits-per-token eval.
github.comy0usaf/jev-lmПодробнее о проекте ↗Source-linked curation
Check whether each cited paper supports the sentence citing it. Claude proves the quote, TypeSafe's Jev scores it, a human decides.
github.comMarissaFamularo/citation-verifierПодробнее о проекте ↗Source-linked curation
Jev-style calibrated decision model (Choice/Score/Noul) on Qwen3.5-0.8B.
github.comshamazharikh/qwen-rlcdПодробнее о проекте ↗Source-linked curation
Jev-style parallel constrained decisions for any MLX model on Apple Silicon. Typed, schema-valid JSON in one forward pass.
github.combnsd55/jevmlxПодробнее о проекте ↗Source-linked curation
A research project on GitHub uses Jev with Qwen3 models on an NVIDIA DGX Spark system.
github.comabhishek085/open-spark-jevПодробнее о проекте ↗Source-linked curation
Stop guessing confidence thresholds: calibrate, threshold, and drift-check typed decision models (TypeSafe Jev) against an LLM teacher.
github.comabhixhek/jevcalПодробнее о проекте ↗Source-linked curation
Zero-shot spam filtering with TypeSafe Jev Noul questions, compared with TF-IDF baselines.
github.combitnovus/jev-spam-evalПодробнее о проекте ↗Source-linked curation
A chatbot project that responds to typed questions, part of a research collection.
github.comkyle-pena-nlp/jevchatПодробнее о проекте ↗Source-linked curation
Decision harness for TypeSafe Jev — confidence gates, shadow mode, recipes, and evals. Claude CLI 48.9s → Jev 1.3s on the same row-filter job.
github.comAntonioCoppe/jev-harnessПодробнее о проекте ↗Source-linked curation
Blind security benchmarks for Jev, TypeSafe's System One model: prompt injection and vulnerable code detection, built on jev-go.
github.comGaurav-Gosain/jev-sec-benchПодробнее о проекте ↗Source-linked curation
Openvons (open-Jev): 有限選択肢に確率で答える判断層 — テキスト / 画像 / 日本語音声コマンド.
github.comgenai-craft/openvonsПодробнее о проекте ↗Source-linked curation
An open-source project aiming to develop a Jev-class decision model for research purposes.
github.comSiliconLabAI/OpenJevПодробнее о проекте ↗Source-linked curation
Тестовая оценка принятия решений от PadFlow (SaaS для разработки земель): схемы, анонимизированные данные и запускатель для моделей, калиброванных по уверенности, таких как Jev TypeSafe.
github.comzsavage8/padflow-jev-evalsПодробнее о проекте ↗Source-linked curation
A research project enabling SQL queries with real type responses.

Source-linked curation
TypeSafe Jev demonstration for new analyzation — experimenting with Jev for fast analysis of news and tickers.
github.com0xnairb/research_deskПодробнее о проекте ↗Source-linked curation
Jev (TypeSafe) vs. Gemini 3.8 Flash vs. GPT-5.6 Luna na anotação estruturada de sentenças do TJSP: qualidade, tempo e custo.
github.comlab-dados/jev-anotacao-sentencasПодробнее о проекте ↗Source-linked curation
AI benchmark on Japan's 2026 Common Test: Jev vs luna-none vs luna-low (static dashboard).
github.comshibadogcap/kyotsu-ai-benchПодробнее о проекте ↗Source-linked curation
Interactive explorer and Jev question workspace for Jev Board datasets.
github.comWebGrga/jev-board-labПодробнее о проекте ↗Source-linked curation
OpenTelemetry Collector connector that uses Jev to assess metric metadata and apply retention policies before export.
github.comishantanu/jevmetricsПодробнее о проекте ↗Source-linked curation
A show-and-tell capability study for Jev, TypeSafe's System One decision model.
github.comlbotinelly/jev-little-airwaysПодробнее о проекте ↗Source-linked curation
Small Python package that uses typesafe.ai to evaluate code comments on certain heuristics.
github.comHexdigest123/typesafe-commentПодробнее о проекте ↗Source-linked curation
JevBench v1 - a benchmark for Jev-class typed decision models: smart, cheap, fast, reliable, open.
github.comfstandhartinger/jevbenchПодробнее о проекте ↗Source-linked curation
This is a LLM Gateway that mimics typesafe ai structured output. Like an imposter Jev.
github.comiammrduncan/typesafe-ai-benchmarkПодробнее о проекте ↗Source-linked curation
Semantic ifs from open models, on a 3090 at home. Independent; not affiliated with Jev or TypeSafe.
github.comTheoLeeCJ/SemIfПодробнее о проекте ↗Source-linked curation
A collection of research papers and open reproductions supporting System One models.

Source-linked curation
Rust port of TypeSafe system-one-adapter (LLM-backed system_one evaluations).
github.comcodeitlikemiley/system-one-adapter-rustПодробнее о проекте ↗Source-linked curation
Vercel Labs terminal CLI that can run Jev as the evaluation model for its evaluate command.
github.comvercel-labs/ai-cliПодробнее о проекте ↗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/litjevПодробнее о проекте ↗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-typesafeПодробнее о проекте ↗Source-linked curation
A research project auditing Jev's performance with the Spanish language.
github.commarcosmartinez/jev-acentoПодробнее о проекте ↗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-labsПодробнее о проекте ↗Source-linked curation
TypeScript experiments, evaluations, and latency benchmarks for TypeSafe's Jev model.
github.comMenny1337/jev-labПодробнее о проекте ↗Source-linked curation
A Jev-inspired decision interface for existing LLMs. Explicit choices, scores, calibration, and review thresholds.
github.comgrishahq/decisionbridgeПодробнее о проекте ↗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-benchПодробнее о проекте ↗Source-linked curation
Papers, open reproductions and independent evaluations behind System One models and Jev.
github.comOmniJev/awesome-jev-galleryПодробнее о проекте ↗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-2.0Подробнее о проекте ↗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-evaluationПодробнее о проекте ↗Source-linked curation
CLI for TypeSafe AI's Jev evaluation model — typed questions in, structured JSON answers out.
github.comjtsang4/jev-cliПодробнее о проекте ↗Source-linked curation
Curated catalog of System One / Decision Models — contributions for modelsystem.one.
github.comfabricioctelles/modelsystemПодробнее о проекте ↗Source-linked curation
Jev (TypeSafe System One) × ASReview SYNERGY abstract screening demo — Choice/Noul vs gold labels.
github.comPistachioAIHQ/jev-synergy-screeningПодробнее о проекте ↗Source-linked curation
A spatial reference explorer for creators. Local Jev query choices, metadata highlights and source-linked collections.
github.comAlbionaHoti/refgardenПодробнее о проекте ↗Source-linked curation
Measures how well TypeSafe's RLCD-Jev model spots real secret credentials in file snippets.
github.comteyhouse/jev-secret-detectionПодробнее о проекте ↗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-benchПодробнее о проекте ↗Source-linked curation