JevAgentHarness: Benchmarking, Deploying and Training Decision Models That Share Control with LLMs
Zhu et al. · 2026-10-15 · v1
Studies fitted confidence thresholds for sharing agent control with decision models.
Papers, models, datasets, and tools for typed decisions.
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Model capabilities and licenses follow publisher cards. API compatibility does not establish equivalent behavior or accuracy.
Zhu et al. · 2026-10-15 · v1
Studies fitted confidence thresholds for sharing agent control with decision models.
Chen et al. · 2026-10-15 · v1
A benchmark spanning matched requests and closed-loop tasks. Experiments have not been reproduced here.
Deng, Fan, Zhang & Xie · 2026-10-15 · v3
In ten prepared scientific cases, the authors separate semantic selections, computed quantities and final labels; comparison-model errors can be hidden by unchanged final labels.
Zheng & Chen · 2026-10-14 · v1
Gates reasoning start, candidate-answer reading and generation stopping; evidence is limited to a frozen Qwen backbone and three task families.
Zhang, Ye & Zha · 2026-10-14 · v1
Tests classification and verification under content-preserving table rewrites across three task families; confidence can flag instability without proving correctness.
Gao et al. · 2026-10-14 · v2
Audits ordinal label underuse across selected decision models; finer scales increase compression, while accuracy, final-label utilization and averaged candidate probabilities remain distinct measures.
Lan et al. · 2026-10-13 · v1
Text and vision attacks with label-validity checks and held-out evaluation models.
Li & Wang · 2026-10-13 · v1
A decision-model architecture exploring null handling, option permutations, scaling, and caching. Its design is Jeva’s, not Jev’s disclosed internals.
Zhu et al. · 2026-10-13 · v1
Structured video decisions with temporal spans and candidate scores; cached and joint inference reuse visual computation.
Li, Krishnan & Padman · 2026-10-13 · v1
Pairs factual probes with action choices to diagnose decision failures.
Ma et al. · 2026-10-13 · v1
Tool-argument judges including Jev reject some correct derived values without visible references; model-generated references are evaluated on three benchmarks.
Li et al. · 2026-10-13 · v1
A controlled adversarial comparison of Jev, LLM judges, and purpose-built safety classifiers.
Li & Wagle · 2026-10-13 · v3
Compares frozen Qwen decision readouts with optional KL-anchored fine-tuning and budgeted reasoning; reported gains depend on backbone size and routing workload, not disclosure of hosted Jev internals.
Rao & Callison-Burch · 2026-10-13 · v3
Compares rubric judges and examines correlated errors that can limit cascade improvements.
Geuter, Cheng & Alvarez-Melis · 2026-10-12 · v1
Answer-letter readout and supervised LoRA baselines; evaluation includes model-generated labels.
Duan et al. · 2026-10-12 · v2
Bilingual decision evaluation and reliability when local decisions compose into larger systems.
Chen & Le · 2026-10-11 · v1
Jev memory-retirement evaluation separates confirmed updates from suggestions; mixed LLM/human labels, shared errors and selection on a small development set constrain cascade claims.
Gan, Lee & Kang · 2026-10-10 · v2
Looped hidden-state computation for typed decisions; additional loops trade compute for accuracy.
Li & Chen · 2026-10-10 · v2
Candidate-menu interventions and confidence cascades; ranking stability does not establish probability calibration.
Madrid-García & Merino-Barbancho · 2026-10-10 · v4
Preliminary medical-benchmark evaluation of Jev 1.13 reports task-dependent accuracy, calibration and weak unanswerable-question detection; it does not establish clinical deployment validity.
Zhang et al. · 2026-10-10 · v2
ContractNLI request variations can change which answers are wrong while aggregate accuracy stays unchanged; stable answers may preserve errors. This benchmark does not validate real legal deployment.
Li et al. · 2026-10-09 · v5
Studies confidence-based escalation from Jev to a reasoning judge, including limits under distribution shift.
Azizi, Baghaei Potraghloo & Pedram · 2026-10-08 · v1
Tests option-channel attacks on seven open-weight models; reversed decisions can remain confident. The reported experiments do not test hosted Jev.
Li et al. · 2026-10-08 · v1
Knowledge, reasoning and multilingual multiple-choice evaluation of Jev; reported rankings and mathematical weaknesses apply to the selected models and benchmarks.
Cheng et al. · 2026-10-08 · v1
Bi-encoder approach to multimodal decisions and retrieval through natural-language interfaces.
Xu et al. · 2026-10-08 · v2
Optimizes context additions around unchanged questions and options in four decision systems; results concern initially correct decisions, and human validity checks cover a sampled subset of successful attacks.
Sun, Xu, Shi & Yang · 2026-10-08 · v3
Tests conflicts between option names and definitions despite structurally valid outputs.
Xu et al. · 2026-10-06 · v1
Same-number citation swaps probe financial-evidence verification; rejecting wrong roles trades off with accepting equivalent support in a constructed test.
Denney & DiGiuseppe · 2026-10-06 · v2
Studies accuracy, cost, and calibration in seven political-science replication tasks.
Rafe & Das · 2026-10-06 · v2
A common-request harness compares typed decision models, generative readouts and trained classifiers; accuracy, selective coverage and out-of-scope acceptance depend on label access and task.
Asseri & Asseri · 2026-10-03 · v2
English/Arabic persona-conditioned Jev survey audit; the effects concern simulated respondents in one model, not measurements of real populations.
Liu · 2026-10-03 · v3
Examines reliability, group-specific confident errors, and selective automation in security decisions.
Teke · 2026-10-01 · v1
Turkish typed-decision evaluation reports decision quality, Brier-based probability quality and risk–coverage alongside input probes; most labels are AI-derived, and the lab’s model used feedback from earlier test results.
Shankaranarayana, Runje & Jannink · 2026-10-01 · v1
Controls information and surface cues to distinguish Jev answer confidence from self-knowledge; black-box behavior does not establish access to an internal knowledge state.
Zhang et al. · 2026-09-30 · v1
Training-free decision readout with label-prior and option-order correction.
Su & Huang · 2026-09-30 · v1
Composes finite action fields and explores alternatives using interaction feedback.
Ding, Jin & Ji · 2026-09-30 · v1
Shared evidence encoding and candidate-probability readout, trained with representation and action-outcome feedback.
Deußer et al. · 2026-09-29 · v1
An early benchmark study of Jev. Read the task selection and evaluation setup alongside its reported results.
Wang et al. · 2026-09-29 · v1
A Chinese typed-decision model and proposed benchmark; domain-specific training calls for independent validation.
Wang · 2026-09-28 · v1
Keeps raw memory records, separating Jev relevance judgments from LLM search planning and answer generation.
Porcedda · 2026-09-28 · v1
A controlled calibration study using constructed probabilities. Interpretations of latent uncertainty remain hypotheses.
Wang & Gao · 2026-09-28 · v1
Compares Jev and generative judges on retrospective agent-trace risk classification; dataset rankings vary, and successful-call latency and valid-judgment cost must be read with coverage.
Li et al. · 2026-09-27 · v1
Tests coherence between logically related probabilities, separately from accuracy and calibration.
Tang & Zheng · 2026-09-26 · v1
An evidence audit and a checklist for evaluating typed decision models.
Hu et al. · 2026-09-25 · v1
A black-box adversarial benchmark. A changed decision is not necessarily an incorrect decision.
Yilmaz, Tasdemir & Gozay · 2026-09-25 · v1
Estimates whether asking for missing information would improve a typed decision.
Guo et al. · 2026-09-24 · v1
Benchmarks Jev alignment-failure detection while separating question wording from input context; benchmark-scorer labels dominate, and context gains often depend on fields encoding the label.
Zhou et al. · 2026-09-24 · v1
A Jev-style visual-choice study separating adaptation gains, candidate-readout validity, and calibration limits.
Wu & Lim · 2026-09-23 · v1
Audits Jev injection on reconstructed InjecAgent cases, separating probability shifts from attacker-target selections; optimization results are checked on fresh calls, within this benchmark setting.
Huang et al. · 2026-09-23 · v1
Jev checks support between generated and reference radiology reports in both directions; expert agreement depends on report size and error definitions and does not establish prospective clinical effectiveness.
Li · 2026-09-23 · v1
Jev state tables and sparse flagship-model anchors support population simulations with shared human–model discrepancy estimates; larger simulations do not add human evidence or establish prospective intervention effects.
Ibrahim & Zaki · 2026-09-23 · v2
Evaluates zero-shot social-science annotation and confidence-routed LLM cascades; lower costs coexist with task-dependent errors and overconfidence, so confidence cannot substitute for label validation.
Wu & Lim · 2026-09-22 · v1
Confidence-gated Jev control with LLM fallback; gains depend on action alternatives and baseline routing.
Yu & Yao · 2026-09-22 · v1
An independent visual decision architecture shares image context across batched questions using an LM-head readout; warm amortized speedups trade higher peak memory, while accuracy gains concentrate on trained task families.
Jiang et al. · 2026-09-21 · v1
Studies Jev as a controller for agent memory. Reported outcomes concern the complete memory workflow.
Cheng et al. · 2026-09-20 · v1
An open typed-decision model using hidden-state readout. The abstract reports a small external comparison.
ufak AI · Apache-2.0
Turkish typed-decision checkpoint with shipped temperature scaling. Its card flags test-informed training and worsening support-task calibration; benchmark results are not blind.
Jeva authors · license not declared
Author checkpoint with backbone, adapter and decision-head files. The inspected card declares no model license; weights have not been loaded or tested by this project.
convaiinnovations · Apache-2.0
An encoder-based decision family with English, multilingual, and workflow-specific checkpoints.
Jared Palmer · Apache-2.0
A Qwen3.5-4B-Base LoRA adapter and pointer head for decisions over documents and typed questions.
Bespoke Labs · CC BY-NC 4.0
A Qwen3.5-9B LoRA adapter returning candidate probabilities. Released under a noncommercial license.
InternLM · Apache-2.0
A decision-tuned Qwen checkpoint with a structured inference wrapper and image support.
Perplexity · Apache-2.0
A separate decision readout and saved calibration temperature. Follow the card’s attention-mode and access notes.
Fastino · Apache-2.0
A 340M English classifier with runtime label sets and single-label or multi-label decisions.
vLLM Semantic Router · Apache-2.0
A text, image, and video decision model with Choice, Yes/No, and Score outputs.
Cloudflare · Apache-2.0
A multimodal model with a joint schema head, returning probabilities over allowed answers.
Python · MIT
The official sync and async client for typed Jev questions and answers.
TypeScript / JavaScript · MIT
The official JavaScript client with answer types inferred from your questions.
Python · MIT
Compare LLMs through the same question interface, with probability outputs and request diagnostics.
Coding agents · MIT
Official guidance for coding agents building with the System One API.
Cookbooks & demos · MIT
Source code accompanying official documentation, demos, and cookbooks.
Workflow integration · MIT
TypeSafe-maintained nodes for adding typed decisions to n8n workflows.
TypeSafe · WorkflowEvals
Official dataset for the invoice-processing workflow evaluation.
TypeSafe · WorkflowEvals
Official dataset for the customer-service workflow evaluation.
TypeSafe · WorkflowEvals
Official dataset for the security-incident workflow evaluation.
TypeSafe · WorkflowEvals
Official evaluation dataset for the agent-trace observability workflow.
hotchpotch · Training mixture
A community training mixture for System One-style decision models. Read the card for its composition and usage conditions.
Bespoke Labs · Evaluation archive
An archive of Decision Index evaluation runs for Bespoke Nimble 9B v3.
MIT code · CC BY-NC 4.0 data
Recorded-response analysis and new API evaluations use identical-input reruns as a control. Most labels are model-derived; this project has not executed the analyses.
Li, Krishnan & Padman · author report
Interactive factual-probe and action-decision diagnostics. The current report covers 22 systems, distinct from the fixed paper’s 18; it is not a verified code or data release.
Hugging Face · community
A community index of decision models and evaluations. Full rankings include private tests.
Interactive evaluation explorer
Inspect four structured workflows. Scores measure agreement with model-generated references.
Python · Apache-2.0
The official evaluation runner, workflow definitions, scoring, and plotting tools.
Hugging Face · four datasets
Published cases, model-generated references, and recorded runs for inspecting reproducibility.
Artificial Analysis · Methodology v1.0
External evaluation of classification, tool calling, knowledge and reasoning. The suite includes private questions.
Entagl Research · 2026-09-23
Author-run labeled decisions and workflow replays. Private customer cases limit public reproducibility.
TypeSafe · September 15, 2026
The launch article. A primary source for the provider’s design claims and their stated caveats.
API concepts
Choose between categorical decisions, ordered ratings, and yes/no probabilities.
Probability & routing
How confidence is derived from a distribution, and how it differs from probability.
Limitations · reviewed October 2, 2026
Documented limitations: numeric precision, long irrelevant context, adversarial inputs, and option-order sensitivity.
Official cookbook
Combine narrow risk questions with application rules for passing, reviewing, or blocking content.
Official cookbook
Check whether a citation’s source context supports a claim.
Official cookbook
Use Choice probabilities to explore deep classification trees.
TypeSafe · Official cookbook
Check inexpensive extraction with per-field Jev questions before escalation; the walkthrough uses cached and illustrative outputs.
TypeSafe · Official cookbook
Restore Markdown structure through line-continuation and block-type decisions while code retains the original wording.
Gneiting & Raftery · JASA 2007 · Author PDF
A foundation for evaluating and incentivizing honest probabilistic predictions.
Guo et al. · ICML 2017
A practical reference for calibration and temperature scaling.
Geifman & El-Yaniv · ICML 2019
Studies prediction with a reject option and the trade-off between coverage and risk.
Kadavath et al. · 2022
An investigation of language models’ self-evaluation and uncertainty.
Beurer-Kellner et al. · PLDI 2023
A programming-language approach to constrained language-model interaction.
Dong et al. · 2024
Efficient grammar-constrained generation: a useful comparison point for typed outputs.
Khattab et al. · 2023
Declarative language-model programs and pipeline optimization.
Zheng et al. · NeurIPS 2024
Efficient execution of structured language-model programs.
Try a broader term, or explore the full collection.
Preprints report their authors’ findings; listing is not independent validation. Foundations provide context, not evidence of Jev’s internal architecture.
THE WIDER RESEARCH CORPUS
Mixed screening levels: editorial review, automated content screening, abstract checks, and metadata-only discovery. Inspect each entry’s label; inclusion is a research lead, not an endorsement.
A SMALL, PRACTICAL START
Give Jev the context and a bounded question. Keep the next action in your code.
Read the official quickstartRequires your own API key. This page makes no model calls. Confidence is a routing signal, not a correctness guarantee.
pip install typesafe-sdk
Set TYPESAFE_API_KEY in your environment, then run:
from typesafe_sdk import Choice, TypeSafeClient
with TypeSafeClient() as client:
result = client.system_one(
model="jev-1.13.0",
state="I was charged twice.",
questions={
"category": Choice(
instructions="What is this ticket about?",
criteria={
"billing": "Charges and refunds",
"technical": "Technical problems",
"other": "None of the above",
},
)
},
)
answer = result.choices["category"]
print(answer.choice, answer.confidence)
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