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OpenJEV

open-jevDecision modelOpen weights

OpenJEV by open-jev is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text.

Pricing

No hosted price is listed. The weights are open: the cost is your own compute.

Specifications

Provider
open-jev
Parameters
500M
Released
—
Open weights
Yes
Question types
Choice (one of N options), Score (ordered rubric), Yes / no
Mechanism
Decoder LM with a decision readout
Backbone
Qwen2.5-0.5B-Instruct
Jev-compatible request
No
Runs on CPU
Yes
License
Apache 2.0

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FAQ

How much does OpenJEV cost?

OpenJEV has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can OpenJEV answer?

OpenJEV answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.

Is OpenJEV well calibrated?

No calibration measurement for OpenJEV is recorded yet.

Is OpenJEV open weight, and can it run on a CPU?

Yes, OpenJEV has open weights. It is small enough to run on a CPU.

Data as of 2026-10-14. Source: Metatext System One registry (metatext.io/system-one). Pricing is per 1M tokens (USD); confirm with the provider before production use.