A FIELD GUIDE TO JEV / VOL. 01

Piccole decisioni.
Grandi possibilità.

Il meglio di Jev: progetti reali, guide pratiche e idee da tutto il web.

1198risorse16lingue
TypeSafe AI THE OFFICIAL SIGNAL 4 HIGHLIGHTS
Diogo Almeida@CompleteSkepticLAUNCH POST

Il post di lancio di Jev

Diogo Almeida presenta Jev, il modello di decisione strutturato di TypeSafe. Guarda il filmato di lancio e esplora il thread originale per l'approccio del modello, esempi e prestazioni riportate dall'autore.

Start with the Launch Post. Explore four official signals.

95 risorse

AI-assisted summaries and translations. Check original sources for context and performance claims.

jh1373

jev-search

Offline Obsidian search with optional Jev reranking of results, requiring user approval before reranking.

jev-search
Research & dataEnglish

Source-linked curation

Zaious

jev-capability-atlas

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。

jev-capability-atlas
Research & dataEnglish

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kshetrajna12

reflex

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

reflex
Research & dataEnglish

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wfzyx

von

The open-source System One decision model. Sub-15ms, non-autoregressive, local drop-in alternative to TypeSafe Jev.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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AntonioCoppe

jev-harness

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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0xnairb

research_desk

TypeSafe Jev demonstration for new analyzation — experimenting with Jev for fast analysis of news and tickers.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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jtsang4

jev-cli

CLI for TypeSafe AI's Jev evaluation model — typed questions in, structured JSON answers out.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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TypeAR-AI

TypeAR

Type-safe one-decision-per-token decoding engine for autoregressive LLMs, inspired by Jev.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Gaurav-Gosain

jev-headline-bench

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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NullPo-jp

PocketJev

On-device iPhone visual decision tool using MLX and Qwen3-VL direct option logits.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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vercel-labs

ai-cli

Vercel Labs terminal CLI that can run Jev as the evaluation model for its evaluate command.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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pithings

advocaat

A small, type-safe client for asking AI questions about your data, powered by TypeSafe Jev.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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anisselbd

jev-phishing-bench

Jev (TypeSafe) vs Claude Haiku 4.5 on 2 000 phishing emails: accuracy, calibration, latency, cost. Reproducible benchmark.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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keltokhy

jsort

Sort by meaning: order lines along a plain-English dimension, from pairwise comparisons judged by TypeSafe's Jev model.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Menny1337

jev-lab

TypeScript experiments, evaluations, and latency benchmarks for TypeSafe's Jev model.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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TRADOTTO
zsavage8

padflow-jev-evals

Benchmark di decisioni strutturate da PadFlow (SaaS per lo sviluppo immobiliare): schemi, righe anonimizzate con etichette e un runner per modelli calibrati nella fiducia come Jev di TypeSafe.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Mapika

decider

One-pass typed decisions with calibrated probabilities (System One style model), fine-tuned from Qwen3.5-2B.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Jökull Sólberg Auðunsson

ensk

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

ensk
Research & dataEnglish

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1 clicks / 7d
anandi1989

awesome-jev-usecases

Evidence-backed index of real-world Jev (TypeSafe AI System One) use cases: repos, patterns, benchmarks, and measured results.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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ShuhanSun

jev-oas-sentinel

Catch breaking API behavior hidden in OpenAPI prose with deterministic checks and TypeSafe JEV System One semantic review.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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fabricioctelles

modelsystem

Curated catalog of System One / Decision Models — contributions for modelsystem.one.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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zhihz

openjev (zhihz)

Local bilingual probability decisions from context, questions, and candidate answers. Independent research preview inspired by TypeSafe Jev.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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AlbionaHoti

refgarden

A spatial reference explorer for creators. Local Jev query choices, metadata highlights and source-linked collections.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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y0usaf

jev-lm

A word-level language model whose output layer is Jev: n-gram drafter, Noul chunk verification, bits-per-token eval.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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adhyaay-karnwal

jev-chat

A chatbot from typed Jev decisions: hierarchical speculative decoding over System One probabilities.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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ishantanu

jevmetrics

OpenTelemetry Collector connector that uses Jev to assess metric metadata and apply retention policies before export.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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hope

jeval

A research project evaluating the practical value of Jev's confidence scores for task execution.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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JackZeng

Jev_apps

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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sgoedecke

system-one

Batched single-token choice inference for open language models, compatible with TypeSafe.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Gaurav-Gosain

jev-sec-bench

Blind security benchmarks for Jev, TypeSafe's System One model: prompt injection and vulnerable code detection, built on jev-go.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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grishahq

decisionbridge

A Jev-inspired decision interface for existing LLMs. Explicit choices, scores, calibration, and review thresholds.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

Source-linked curation

realZachi

jevtest

Semantic test matchers for Vitest and Jest, powered by TypeSafe's Jev model. Write expectations in plain English, get calibrated probabilities back.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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ikermoel

open-alternative-jev

Open alternative to Jev: typed, calibrated decisions from any open-weights LLM in one forward pass (HF + vLLM), with benchmarks.

open-alternative-jev
Research & dataEnglish

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zwliJay

JevForge

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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olanotolu

jevbetter

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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scienthoon

jev-ood-calibration

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Heman10x-NGU

openJev-verdict-2.0

Calibrated 151M Non-Autoregressive Decision Engine beating TypeSafe Jev & Laya on LocalLLaMA/typed-decisions (77.10% acc, 0.0636 Brier, 0.0144 ECE).

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Bewinxed

jevgpt

A chatbot built on a model that cannot generate text (TypeSafe AI's Jev, driven autoregressively).

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

Source-linked curation

fstandhartinger

jevbench

JevBench v1 - a benchmark for Jev-class typed decision models: smart, cheap, fast, reliable, open.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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HackSing

jev-report

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

Source-linked curation

mithalouni

system-one-open

Open replica of TypeSafe's Jev: typed calibrated decisions in one forward pass, on Gemma 4 E2B / Gemma 3 270M (Modal).

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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MarissaFamularo

citation-verifier

Check whether each cited paper supports the sentence citing it. Claude proves the quote, TypeSafe's Jev scores it, a human decides.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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abhixhek

jevcal

Stop guessing confidence thresholds: calibrate, threshold, and drift-check typed decision models (TypeSafe Jev) against an LLM teacher.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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Will Kelly

jev-evaluation

A research project on GitHub conducting nine experiments and 28 predictions with fixed parameters, focusing on Jev's performance metrics.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

Source-linked curation

zhengxuyu

LitJev

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.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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TheoLeeCJ

SemIf

Semantic ifs from open models, on a 3090 at home. Independent; not affiliated with Jev or TypeSafe.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

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bnsd55

jevmlx

Jev-style parallel constrained decisions for any MLX model on Apple Silicon. Typed, schema-valid JSON in one forward pass.

JEVLAB decorative pixel illustration; not source mediaJEVLAB ART
Research & dataEnglish

Source-linked curation