Jev directory
Laya on Ollama
- Reading time
- 2 min
- Published by
- Community
- Author
- Convai Innovations
- Last verified
- Oct 2026
- Platforms
- CLI
- Capabilities
- Open sourceSelf-hostedRuns locally
Highlights
- 421M parameters, fine-tuned from ModernBERT-large; one question can be answered in under 10 ms on an M5 Max.
- Trained with RLCD against strictly proper scoring rules, so honest probabilities maximize reward; in-task calibration error (ECE) is 0.060.
- Scores every option of every question in a single forward pass with no decoder, so there is no text to parse and nothing to hallucinate.
- Apache 2.0 licence with 7,328 downloads and four checkpoints, including multilingual and typed-decisions MLX builds at 678-846 MB.
- Shipped checkpoint is fine-tuned on human-annotated email triage, content safety, intent routing, and fact verification.
Watch out
Apache-2.0 weights, but the shipped checkpoint targets a fixed set of workflows, and every option shares a fixed token budget inside the decision head, so the page advises keeping a single choice question to roughly 20 options. Decision models were not yet in the Ollama CLI or client libraries, so calls go through /v1/systemone or the TypeSafe SDK.
Questions about this entry
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Reactions & coverage
Posts, threads, and videos about this entry from around the web.
X: Both Jev 1.13 and 1.14 score 29 of 30 on 30 Turkish buyer and seller messages
X: Standard One SH (StandardThinking)
LinkedIn: What multimodal decision models actually change, and what they do not.
LinkedInJevDirectory.org
Hacker News: Decision Index 0.2.1 scores open reproductions of Jev on a frozen suite.
jackbravo4 pointsDecision Index 0.2.1 – 70 open reproductions of TypeSafe Jev's Decision ModelRead the thread on Hacker NewsFrom the Jev guides
Original write-ups on what this entry is for.
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