Jev directory
Jev Practices & Patterns
296 curated Jev entries. How to design Jev states, questions, and confidence gates the right way, from the official patterns to the failure modes worth designing around.
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296- Docs18
- Repos & sites199
- Videos7
- Posts16
- Articles56
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All 296 Jev Practices & Patterns
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Showing 49–96 of 296 resources
Open spike issue in the Orcha multi-agent orchestration platform: it proposes moving judgment out of expensive state-of-the-art models and onto Jev, which emits precise instructions for a cheaper executor to carry out, and requires findings, a cost model, and a recommendation as issue comments.
Jev Practices & Patterns#community#orchestration#cost-control
Community
open-orcha/orchaTypeScript
open-orcha/orchaTypeScriptA paper analyzing 2,170 public Jev projects on GitHub as of September 22, 2026. It maps how projects use Jev for attribute judgment, scoring, action selection, content filtering, and model and tool selection, and finds public attention concentrated in routing and interface projects rather than tracking project counts.
Jev Practices & PatternsArticle#community#research#ecosystem
Community
SREGym benchmarks a Jev-only diagnosis pipeline with no LLM in the loop: it programmatically collects Kubernetes evidence, then Jev picks the root-cause component and supporting observations. Across 105 diagnoses on 21 faults it passed 80 (76.2%) at a 14.6 s median time and an estimated $0.15 total cost.
Jev Practices & PatternsArticle#community#sre#kubernetes
Community
Kiln points its autoresearch loop at Jev for Mandarin pinyin disambiguation. The optimized harness, built from jieba segmentation and CC-CEDICT word evidence with some chained Jev calls, cuts mistakes from 316 to 147 on 61,750 decision positions, ahead of a DeepSeek reasoning baseline at $1.60 versus $11 per pass.
Jev Practices & PatternsArticle#community#optimization#chinese-nlp
Community
Local unofficial /v1/systemone adapter that serves Choice, Score, and Noul probabilities via first-token LLM judgments or a fine-tuned ModernBERT scorer, including Japanese docs.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
Argos1111/jev_localPython
Argos1111/jev_localPythonCLI that calibrates Jev questions against your own labels: write questions, label examples in JSONL, run check, and get a verdict per question — gate, gate-above-confidence, ranker, unusable, or too-few-examples.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
smkrv/jev-calibrateTypeScript
smkrv/jev-calibrateTypeScriptUnofficial laptop study of parallel constrained decoding: prefill once, share the KV cache across fields, and decide all schema fields in one batched forward pass without writing JSON.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
rorshopping/jev-on-a-laptopPython
rorshopping/jev-on-a-laptopPythonLive race rig that labels 1,000 real app reviews with Jev typed questions against Gemini JSON output on identical batches, then replays recordings and re-ranks rows locally without extra model calls.
Jev Practices & Patterns#community#jevbest#catalog-import
Offline evaluator that checks whether classifier confidences match reality and converts mistake costs into a deployable threshold, emitting an HTML report plus machine-readable threshold files.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
rlaope/jevalPython
rlaope/jevalPythonVendor-neutral harness that tests whether Jev reranking improves a small RAG stack, using frozen hybrid BM25 plus BGE-M3 candidates and isolating retrieval, rerank, and generation stages.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
erendikmenn/jev-rag-benchmarkPython
erendikmenn/jev-rag-benchmarkPythonMinimal Python recipe that turns any causal LLM into a Jev-style classifier by prefilling choice_index and constraining sampling to legal indexes in one forward pass.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
sgoedecke/system-onePython
sgoedecke/system-onePythonOpen replica of the typed decision API on openly available base models, answering choice, score, and true-probability questions in one forward pass with no decoding.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
mithalouni/system-one-openPython
mithalouni/system-one-openPythonType-safe generation layer over existing autoregressive models via JSON Schema on SGLang, returning constrained string, numeric, boolean, and enum answers with optional thinking.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
zmtomorrow/TypeARPython
zmtomorrow/TypeARPythonCurated catalog of community Jev applications grouped by use, where each case explains the mechanism and states what the public evidence does and does not prove.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
JackZeng/Jev_appsPython
JackZeng/Jev_appsPythonPython browser agent that reads one lean page view per state and answers with a single JSON action, using any OpenAI-compatible model with no decision API or browser daemon.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
idovmamane/dejevuPython
idovmamane/dejevuPythonDecision layer answering finite text, vision and voice choices with none-of-the-above probabilities and execute, confirm or reject policy, plus a JevPick speculative decoder.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
genai-craft/openvonsPython
genai-craft/openvonsPythonPython experiment that builds a past-only market state for a Hong Kong code plus HSI and HSTECH, asks Jev for up, flat or down direction, and saves JSON with an HTML report.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
sosopop/jev_stockPython
sosopop/jev_stockPythonResearch-memory skill that keeps experiment claims traceable with ten operations, provenance gates, and optional batched Jev audits over memory files.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
poiuyjie/jev_project_contextPython
poiuyjie/jev_project_contextPythonSwift package for typed yes-or-no, choice, and score decisions with MLX, Core AI, and Jev backends behind one session API.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
mattt/AnyDecisionModelSwift
mattt/AnyDecisionModelSwiftLocal memory layer that stores verbatim agent quotes in per-project SQLite and grades them with Jev into stale, wrong, unsupported, or keep verdicts.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
romiluz13/jevmoryPython
romiluz13/jevmoryPythonNushell module for Jev that pipes state into jev ask with noul, choice, and score builders, returning numeric answers that filter and sort in the pipeline.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
cablehead/jev.nuNushell
cablehead/jev.nuNushellMinecraft setup where Hermes plans at milestones, Jev picks one bounded harness action per step, and Mineflayer code owns validity and execution with no screenshots.
Jev Practices & Patterns#community#awesomejev#catalog-import
Local offline System One server speaking the hosted /v1/systemone wire format, so existing SDK code runs unchanged against small on-machine models.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
amithgc/local-jevPython
amithgc/local-jevPythonPaper-trading arena where Eikos-27B and Jev get the same market view and 28 typed questions every five minutes across 14 Hyperliquid perpetuals with simulated fills.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
caiovicentino/eikos-arenaPython
caiovicentino/eikos-arenaPythonLocal snake-arena demo where you steer a golden snake against four NanoJev AI snakes, with each AI snake showing its live direction-probability bars from a single forward pass.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
caijinchun/nanojev-arenaHTML
caijinchun/nanojev-arenaHTMLLocal harness that runs the open Laya decision model on your own machine and wires it into browser agents through a TypeSafe-compatible /v1/systemone dialect.
Jev Practices & Patterns#community#awesomejev#catalog-import
Self-hosted Apache-2.0 decision engine with a Jev-style wire format that turns a model you point at it into typed choice, score, and noul answers.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
arjun988/KevTypeScript
arjun988/KevTypeScriptLocal experiment that asks an off-the-shelf model typed System One questions with single-position logit readout, measuring speed, calibration, and order sensitivity.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
aabolfazl/typesafe-localPython
aabolfazl/typesafe-localPythonLine-oriented semantic search that adds a Jev meaning pass over your own shortlisted files next to exact search. Real search is the default with a key, while dry-run previews the payload offline with no network or credentials.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
larguesa/jev-searchPython
larguesa/jev-searchPythonFree hands-on course of 12 notebooks that pairs Jev decisions with LLM writing across 13 small tools, needing one OpenRouter key and printing cost and self-checks per lesson.
Jev Practices & Patterns#community#awesomejev#catalog-import
Reproduction kit that rebuilds a frozen typed-decision benchmark suite from public sources and runs any engine through it with resume, scoring, and index computation.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
apolinario/decision-indexPython
apolinario/decision-indexPythonBenchmark harness that tests whether models can forecast federal motion-to-dismiss outcomes from the written record, scored per claim-defendant pair with micro-Brier and clustered intervals.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
johnhughes3/LegalForecastBenchPython
johnhughes3/LegalForecastBenchPythonFrozen 100-question-per-cell check of TypeSafe Jev on Korean versus English reading, paraphrase, and medical exam items, with recorded responses and uncertainty intervals.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
mahlernim/jev-korean-benchmarkPython
mahlernim/jev-korean-benchmarkPythonWord-level language model experiment that uses Jev as its output layer, with explicit tokenizer, sampler, repetition mask, stop rules, and chunk verification.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
y0usaf/jev-lmTypeScript
y0usaf/jev-lmTypeScriptClaude Code plugin that routes code review, debugging, planning, and search triage through typed Jev judgements with fixed thresholds applied in code.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
buchmark/claude-jevTypeScript
buchmark/claude-jevTypeScriptWatch Jev play chess against OpenRouter LLMs or Stockfish, or play Jev yourself, with every weighed move, likelihood, clock, and finished game saved for replay.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
choxos/jevchessJavaScript
choxos/jevchessJavaScriptReproducible harness comparing Jev, Laya, two LLMs, and two BERT variants on SST-2, AG News, and Banking77 for accuracy, calibration, latency, throughput, and cost.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
dhruvmehra/jevbenchPython
dhruvmehra/jevbenchPythonStarter kit putting Kinde identity plus Jev judgment in front of every agent tool call, with allow, hold-for-approval, or deny decided in code and written to a ledger first.
Jev Practices & Patterns#community#awesomejev#catalog-import
Python client and decision toolkit for the Jev System One endpoint with noul, choice, and score primitives, batched asks, composition helpers, concurrent evaluation, and an MCP server.
Jev Practices & Patterns#community#jevbest#catalog-import
Community
docxology/daf-jevPython
docxology/daf-jevPythonInline verifier that checks LLM responses and agent plans with one Jev call across alignment heads and returns block, flag, or pass for gates and hooks.
Jev Practices & Patterns#community#awesomejev#catalog-import
Communitycaiovicentino/jev-alignJavaScript
caiovicentino/jev-alignJavaScriptCLI and agent commands that audit a git diff hunk-by-hunk against editable YAML standards packs, with Jev answering typed questions and the agent fixing flagged lines.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
Kushwho/jev-codesTypeScript
Kushwho/jev-codesTypeScriptOpen-source Jev-compatible decision engine with a Claude Code style REPL, answering Choice, Score, and Noul questions in one forward pass over open models.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
GPT-AGI/OpenJevPython
GPT-AGI/OpenJevPythonOpen arena pitting Jev against a chosen opponent on your question, hiding identities until you vote, then revealing latency, cost, and confidence data.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
chenmingtang830/jevarenaTypeScript
chenmingtang830/jevarenaTypeScriptReproducible study of Jev 1.13 as reward model, judge, and process verifier across eight tracks and 40,940 examples with CSV data and an interactive report.
Jev Practices & Patterns#community#awesomejev#catalog-import
Desktop paper-trading app for stocks and crypto where Jev answers narrow market questions each second and code turns the answers into orders under your stops and targets.
Jev Practices & Patterns#community#awesomejev#catalog-import
Self-hosted Feishu bot plus web workbench where a text model proposes 2-5 candidate answers and TypeSafe Jev picks among them with probabilities.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
nssmd/jev-botJavaScript
nssmd/jev-botJavaScriptIndependent open-source agent runtime where Jev makes typed tool decisions, an LLM authors text only when needed and reviews low-confidence calls, and code owns execution.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
parkavenue9639/jevloopPython
parkavenue9639/jevloopPythonIndependent harness grading System One decision models on the same sealed manifest and seed with byte-identical inputs, pitting closed Jev against open Laya and constrained Qwen.
Jev Practices & Patterns#community#awesomejev#catalog-import
Community
instax-dutta/sysone-benchPython
instax-dutta/sysone-benchPythonIndex of all 296 entries
- Jev + Claude Code case study
- SystemOne in SeerScore: workflow review
- SystemOneAffordance
- Jev isn't tricked by ordering, and the others are.
- Jev Does Not Play Dice — kantahayashiai.github.io
- Images and Assets (Dreamer-Ready)
- Box Questions (Dreamer-Ready)
- JevCoder: When Does Decision Delegation Pay Off in Code Repair? (arXiv 2610.19596)
- Jev-Guided Strategy Bandit: Multi-Dimensional Judge Feedback for Query-Efficient Jailbreak Attacks (arXiv 2610.19971)
- Jev Engineering: Typed Decision Systems for Reliable Agent Workflows
- Jev Lab — pasblinn
- Using Jev in Domain Abuse Review: A Workflow Design
- A Thermometer, Not an Analyst: A Text Judge in a Trading Lab
- Laya in shadow, next to Jev on every request
- Jev handed our LLM the wrong page a tenth as often as our embeddings
- Jev review: tested against Fable on 520 posts
- Jev in practice: typed decisions, scoped authority
- Routing Agents with Jev and Laya: Adding System One Decisions to Quarkus LangChain4j
- Recalibrating Many Questions with Few Labels: Minimax Rates and Identification Limits (arXiv 2610.18488)
- Consider, Then Choose: Order-Invariant Decisions in System One Models (arXiv 2610.18233)
- Code Owns the Simulation, Jev Owns the Evaluation (arXiv 2610.01834)
- Judgement in the Age of Jev: From Evaluation Scarcity to Evaluation Abundance (arXiv 2610.01231)
- Hidden Risks of Jev: An Empirical Study of Security, Privacy, and Dual Use (arXiv 2610.04985)
- HydroJEV: A one-second, training-free screen for cyber-attack and fault attribution in water distribution networks (arXiv 2610.02048)
- Calibrated Decision Models for Autonomous Penetration-Testing Harnesses: JEV and Laya as System One Decision Layers for LLM-Driven Pentest Agents (arXiv 2609.28940)
- Decision Hijacking: Prompt Injection Attacks on Jev's Typed Probabilistic Decisions (arXiv 2609.28613)
- RSAJEV: Training-Free Abstaining Prototype Memory for Eliminating Silent Hallucination in JEV-Based Remote Sensing Classification (arXiv 2610.15742)
- FastJEV: Understanding Redundancy for Compact JEV Inference (arXiv 2610.11379)
- System Switch: When Should a Fast Decision Model Stop and Think? (arXiv 2610.09683)
- Can Jev be Your Q or Policy in Reinforcement Learning? (arXiv 2610.11692)
- Visual Jev Rewards: Reference-Bound Verification for Multi-Subject Image Generation (arXiv 2610.09328)
- From Probabilities to Decisions: Search and Multi-Teacher Distillation with Jev (arXiv 2610.09188)
- JevCascade: Readout Stability and Inference-Time Compute Allocation for Prefill-Only Decision Models (arXiv 2610.07716)
- Labels Override Definitions in Jev-Style Typed Decision Models (arXiv 2610.02586)
- Student-Guided Teacher Distillation for Efficient LLM Task Routing: Positioning Against Jev-Style System-1 Classifiers (arXiv 2610.02516)
- LLM-as-Jev: LLMs Are Already Jev-Style Decision Models -- When and How to Fine-Tune Them (arXiv 2610.02076)
- More Choices, Fewer Decisions: Ordinal-Scale Bias in JEV-like Direct-Decision Models (arXiv 2609.38827)
- Dyad: Extending Large Language Models with Native Typed Decision-Making (arXiv 2609.36116)
- Koa-decision: Fast and Consistent Structured Decision Making with Generative LLMs (arXiv 2609.36115)
- PACT: Pairwise-Anchored Calibrated Tuning for Single-Token Typed Decisions (arXiv 2609.35865)
- Type-Safe Is Not Error-Free: Typed Decision Models Follow the Option Name, Not the Definition Bound to It (arXiv 2609.26758)
- JevOut: Natural Context Can Flip Decision Models (arXiv 2609.30243)
- JevForest: Path Voting for Budgeted Feature Acquisition (arXiv 2610.10615)
- Emo-Jev: Probabilistic Reasoning for Emotion Classification with Jev (arXiv 2610.08829)
- When the Right Answer Is Missing: An Arithmetic-Dependent Rejection Bottleneck in Jev (arXiv 2609.39496)
- Decide, Don't Generate: Competitive Dimensional ABSA with Jev's Typed Decisions (arXiv 2609.35293)
- Calibrated Decisions at Scale: Converting Police Crash Narratives into Probabilistic Crash Variables with a System One Model (Jev) (arXiv 2609.24052)
- Reading Right, Acting Wrong: Diagnosing Decision Failures of System One Models in Agent Loops (arXiv 2610.18579)
- Orcha Jev Judgment Spike
- Jev in the Wild (arXiv 2609.30216)
- Jev-Driven SRE Diagnosis: What Worked and What Failed
- Auto-optimizing Jev: Half the Errors, 1/7 the Cost
- Jev Local — Argos1111
- Jev Calibrate
- Jev On A Laptop
- Jev Column Race
- Jeval — rlaope
- Jev RAG Benchmark
- System One — sgoedecke
- System One Open
- TypeAR
- Jev_apps
- Dejevu
- Openvons
- Jev Stock
- Jev Project Context
- AnyDecisionModel
- Jevmory
- Jev.nu
- Hermes And Jev Play Minecraft
- Local Jev — amithgc
- Eikos Arena
- Nanojev Arena
- Laya Browser Agent
- Kev — arjun988
- TypeSafe Local
- Jev Search — larguesa
- Learn Jev End To End
- Decision Index
- LegalForecastBench
- Jev Korean Benchmark
- Jev Lm — y0usaf
- Claude Jev — buchmark
- Jevchess — choxos
- Jevbench — dhruvmehra
- Jev Agent Authorization
- Daf Jev
- Jev Align — caiovicentino
- Jev Codes
- OpenJev — GPT-AGI
- Jevarena — chenmingtang830
- Jev Reward Model Evaluation
- Jev Realtime Trading
- Jev Bot — nssmd
- Jevloop — parkavenue9639
- Sysone Bench
- Jev Model Tokengate
- Reflexbench
- Jev Chat — adhyaay-karnwal
- Openjev — DECRUX9812
- Jev Behavior Study
- Tenbin
- Jev — cobusgreyling
- Jevtest — realZachi
- Rh Guard
- ORIGIN-CIVILIZATION
- cu-Jev
- Jev As Quant
- Ego Jev Ultrafast
- Jev Storyboard Lab
- Jet
- Jev Benchmark — YidiDev
- Cairn Jev Lab
- Jev Guardrails — deepansh-saxena
- System One Gemma
- Jevgpt — Bewinxed
- Trade Jev
- Jev Does Not Play Dice — KantaHayashiAI
- Mcts Agent
- Jev Gate — MongLong0214
- Jev Exploration
- Jev Benchmark — wondertwins
- Siftr
- Jev Mode — ddfeyes
- Research Desk
- Jev Chess — hemanth
- TypeSafe Chess — Dimesio
- Toolgate — RiskAverseTech
- Jev Starter — hamakyo
- Jevbus
- Watfile
- Jevshield
- Polymarket Btc 5M Agent
- TypeSafe Jev MCP
- Ruby LLM Providers TypeSafe
- Jev MCP Server — wangkuangkuang
- Metask Jev
- Bes Kelime Jev
- Dsh Jev Decide
- Jevalyzer
- Jev Deepresearch
- Jev X Kit
- Jev Bot — bl888m
- Openpave Jev
- Jev Reviews
- Open System One
- Jev System One Reference
- Jev Dllm
- Paper Package
- Decisionbridge
- RISC-jeV
- Jev Freeform
- Typed Decisions
- Jev Synergy Screening
- Stuntdouble
- Qwen Rlcd
- Kyotsu AI Bench
- Jev Routing Experiment
- Openjev Experiments
- Padflow Jev Evals
- Jev Carryforward
- Modelsystem
- TypeSafe Vs DeepSeek
- Jev Labs
- Openpoke Meets Jev
- What Is Jev
- Jev Benchmark — themsquared
- System One Security Triage
- Openjev Multimodal
- Yc Jev Bench
- Rerank Bench Jev
- System One — mpuig
- Can Jev Play
- Jev-Research-Index
- LetJevDecide
- Decide — gopaljigaur
- System One Router
- MEDJEV — PAI-CUHK
- Jev Filter
- Jev Zig CLI
- Typesafe_chess_eval
- Jev Shadcn Lint Eval
- System One Adapter Rust
- Jev Deferred Crispification
- Jev Alpha Bench
- Jev Headline Bench
- Jev Report
- Jev Finance Benchmark
- Jevals Data
- Jev Calibration Audit — jujumilk3
- Labs
- Jev Anotacao Sentencas
- Jev Vs Luna
- Jev Lab — Menny1337
- Jev Skillbench
- Misereru Slide Jev
- Shade Arena Jev Monitor
- Jev Certify
- Jev Eval — onlyoneaman
- Jev No Enem
- Jev Jp Address
- Jev Trace Classifier
- FinancialPredictionJev
- Jev Pick And Place Study
- Thaiexam Jev Charts
- Jev Evaluation
- Minojev
- Snbt Jev Bench
- WindTunnel
- Jev Dataops
- Jev is the fish at the poker table
- Jev AI Model in Action: 5 Practical QA Use Cases + Hands-On Demo
- Jev's Architecture Unmasked
- Jev: The Language Model That Won't Talk
- Jev in Search: Three Practical Evaluations
- Jev Engineering: turning an agent stack into a control system
- Local Laya vs cloud Jev on Tetris
- What is Jev? (and is laya better?)
- Is Jev actually good at computer use?
- Run a Jev-Style Model on Your Own GPU
- Is Jev Really Better, Faster and Cheaper? I Put Jev To Test vs. Luna
- Jev vs Jev in Gomoku
- Can LLMs Do What Jev Does? A Replication Attempt
- fx auto mode benchmarked with Jev
- A working note on Jev harnesses for coding agents
- Jev within 5 points of a fine-tune
- Shrinking gomoku from 225 moves to 40
- Workflow evals
- TypeSafe AI Benchmark
- Jevcal
- Jev Rerank Bench
- Jev Eval Agent
- Jev Sec Bench
- Zero-shot email classification with TypeSafe's Jev
- Decider
- SemIf
- Jev Agent Failure Benchmark
- Kev — jaredpalmer
- Jev Search Rerank Eval
- Does Jev know when it doesn't know?
- Jev vs LLM: a phishing decision benchmark with a calibration audit
- Jev Secret Detection
- Jev Benchmarks
- Little Airways
- Janus
- Jev Research Eval
- Jev Playground — hegargarcia
- openJev-verdict-2.0
- Jev DSPy Lab
- Jev Orderby Bench
- JevBench — fstandhartinger
- ASSAY-001
- Jevbetter
- Openjev — daseinlabs
- OpenJev (Verdict)
- Reflex — kshetrajna12
- Jev as a judge for agent evals
- Jev Arena
- Jeff — logan-markewich
- Jev Capability Atlas
- JEVfire
- Poorjev
- Mini-Vibe Check: TypeSafe's Jev Judged Everything I've Written in 0.7 Seconds
- Jev: one judge call, or twelve dimension scores? I measured both on three tasks
- Testing Jev on public and private data: classifier or filter?
- An early-access test of TypeSafe's Jev: calibrated judgments for half a cent
- Testing TypeSafe Jev, Mistral and Gemini for local event validation
- How Much Does a Technical SEO Audit Cost in 2026?
- Jevals — Independent Jev Benchmark for Models That Decide
- A 706K-parameter form filler
- Security decisions that fit Jev
- Reranking 33,047 catalog entries
- Inferring Jev's internals from 1,000 calls
- State
- Jev 1.13 Jaggedness
- Choice
- Score
- Noul
- Advanced: Structure
- Pattern: Composite Scoring
- Pattern: Confidence-Gated Routing
- Pattern: Speculative Fan-Out
- Pattern: Intent Routing
- Building with Jev
- What Can You Build With Jev? Documented Use Cases
- Jev in the Agent Runtime
- Typed Decision Models: Jev and Laya in Agentic AI
- Jev as an LLM Judge
- Jev Beats Gemini Flash Lite on a Classifier Eval
- On Jev-Scored Compaction: A Critique
- Jev + WebMCP Breaks a Benchmark
- Primitives: Choice, Score & Noul
- Confidence
- Patterns
- How to Build with TypeSafe
- Example Use Case Map
Start here with the Jev AI model
Featured entries in practices & patterns.
The box question type: one bounding box per question, returned as four edges that are fractions of the image, plus confidence, with no criteria field and no not-found value.
Jev Practices & PatternsDocs#official#docs#vision
Official
Published evaluations of four automation workflows, security incidents, agent trace observability, invoice processing, and customer service, comparing Jev and frontier LLMs as structured workflows versus single prompts.
Jev Practices & PatternsDocs#official#benchmarks#evaluation
Official
Apache-licensed, locally runnable Jev-style decision models (0.8B, 4B, 9B on Qwen3.5) with released weights, training code, a System One-compatible server, frozen eval suites, and a playground.
Jev Practices & Patterns#community#python#open-models
Community
jaredpalmer/kevPython
jaredpalmer/kevPythonJev AI model articles
Original guides that go deeper on Jev practices & patterns.
Jev's compaction tools keep or drop tool calls instead of summarizing them — the thresholds they fire at, the savings they report, and why 1.14's opt-in 262k context doesn't settle the choice.
Jev Practices & Patterns#compaction#long-context#coding-agents
Read article
Per-tick buy/sell calls on Monad, a five-sleeve Hyperliquid desk, Nifty-50 rankers, and Polymarket confidence gates: how the catalog's trading repos wire Jev in without asking it to predict prices.
Jev Practices & Patterns#trading#markets#gates
Read article
How the box question type turns a crop into a decision: four fractional edges, a presence Noul for missing targets, the cut-off problem, and two patterns worth building.
Jev Practices & Patterns#vision#box#patterns
Read article
From the Jev community
Watch walkthroughs, read the threads, and see what builders are posting.
YouTube: A podcast segment on TypeSafe AI, its $40M raise, and the Jevons paradox behind the name.
YouTube: Gary Explains the catch: Jev understands natural language but answers with structured values and confidence.
YouTube: Sam Witteveen on System 1 thinking, then Choice, Score, and Noul demos, and chained actions.
Hacker News: Pipeable onesie CLI with shell-safety exit codes and a calibrate mode over labelled commands.
frodikarlsson3 pointsShow HN: onesie – An expressive Unix-pipeable CLI for System One models like JevRead the thread on Hacker NewsHacker News: Spoken-language learning with video scenes branching on TypeSafe Jev.
j_rcht1 pointShow HN: Worklaude – learn by speaking; video scenes branch on TypeSafe JEVRead the thread on Hacker NewsHacker News: OpenAI's Luna Decisions API framed as a fast follow to TypeSafe's Jev wave.
matt_d6 pointsOpenAI Answers TypeSafe's Jev with a Decision API Built on LunaRead the thread on Hacker NewsHacker News: Nikola Balić on what made the Jev launch easy to try and easy to share.
nkko2 pointsWhat TypeSafe Got Right with the Jev LaunchRead the thread on Hacker News