No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
by ikermoel · LLM Plugin · ★ 51
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🔒 Is open-alternative-jev safe to install? View the security audit →
Open Alternative to Jev Open-source System One models: typed, calibrated decisions from any open-weights LLM, in one forward pass. An open alternative to the idea behind TypeSafe's Jev, running on your own GPU with models you already have. Python package , import name ("System One"). No text is generated: the model reads the state once and every question is answered from the next-token distribution at its own position, restricted to the options you give. Results Qwen3.6-27B (bitsandbytes 8-bit), one H200 MIG slice with 35 GB, Hugging Face Transformers. Every number below comes from , produced by the scripts in . RACE-H, 250 passages x 4 questions (n = 1000). One passage, four multiple-choice questions. This is the shared-state case the library is built for. Packing writes the passage once instead of four times: 2.5x fewer tokens, 2.3x the throughput of batching, same accuracy (Open Alternative to Jev minus A = +0.3 points, 95 % CI -0.9 to +1.4, bootstrap over passages). MMLU, 1200 questions, no shared state. Accuracy holds up to 12 questions per sequence.
| Stars | 51 |
| Forks | 11 |
| Language | Python |
| Category | LLM Plugin |
| License | Apache-2.0 |
| Quality Score | 66.2350805811315/100 |
| Open Issues | 1 |
| Last Updated | 2026-09-22 |
| Created | 2026-09-18 |
| Platforms | python |
| Est. Tokens | ~16k |
Looking for a open-alternative-jev alternative? If you're comparing open-alternative-jev with other llm plugin tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.
🔥🔥 Papers, open reproductions and independent evaluations behind System One models and Jev.
🔥🔥 Papers, open reproductions and independent evaluations behind System One models and Jev.
A curated list of Jev use cases, projects, SDKs, and resources. Jev is TypeSafe AI's System One model for fast
Awesome list of TypeSafe AI Jev use cases: 74 demos ranked by likes, 150+ GitHub repos, limits, cost and API e
Jev / TypeSafe System One 中文精选列表：官方资料、SDK、爆款应用、Agent 工具、开源复现与独立评测，附中文上手指南，每日自动收录 GitHub 热门项目。
Typed decisions with TypeSafe's Jev, the first System One model
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open-alternative-jev is Open-source alternative to TypeSafe's Jev: a System One style model layer that gives typed, calibrated decisions from any open-weights LLM in one forward pass (HF + vLLM), with honest benchmarks. It is categorized as a LLM Plugin with 51 GitHub stars.
open-alternative-jev is primarily written in Python. It covers topics such as calibration, classification, jev.
You can find installation instructions and usage details in the open-alternative-jev GitHub repository at github.com/ikermoel/open-alternative-jev. The project has 51 stars and 11 forks, indicating an active community.
open-alternative-jev is released under the Apache-2.0 license, making it free to use and modify according to the license terms.
The top alternatives to open-alternative-jev on Agent Skills Hub include awesome-jev-gallery, awesome-jev, awesome-jev. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.
Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.
The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.
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