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jevson-4b-01

asjsonDecision modelOpen weights

jevson-4b-01 by asjson 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
asjson
Parameters
4B
Released
Sep 2026
Open weights
Yes
Question types
Choice (one of N options), Score (ordered rubric), Yes / no
Mechanism
Decoder LM with a decision readout
Backbone
Qwen/Qwen3-4B
Jev-compatible request
No
Runs on CPU
No
License
apache-2.0
Hugging Face
asjson/jevson-4b-01

Compare jevson-4b-01 with…

jevson-4b-01 vs amos-1-large—/1M injevson-4b-01 vs amos-1-medium—/1M injevson-4b-01 vs Celeris-1 Decision$0.04/1M injevson-4b-01 vs ScaleDown Classify-1$0.04/1M injevson-4b-01 vs Cloudflare clef—/1M injevson-4b-01 vs Cloudflare clef-flash—/1M in

FAQ

How much does jevson-4b-01 cost?

jevson-4b-01 has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can jevson-4b-01 answer?

jevson-4b-01 answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.

Is jevson-4b-01 well calibrated?

No calibration measurement for jevson-4b-01 is recorded yet.

Is jevson-4b-01 open weight, and can it run on a CPU?

Yes, jevson-4b-01 has open weights. It needs a GPU to run at useful speed.

Data as of 2026-10-14. Source: Metatext decision-model catalogue, 2026-10-14 (Hugging Face). Pricing is per 1M tokens (USD); confirm with the provider before production use.