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JoshuaSP diffusiongemma (open-jev)

JoshuaSPDecision modelOpen weights

JoshuaSP diffusiongemma (open-jev) by JoshuaSP is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text. It scores 47.3 on the Jev Decision Index (rank 56).

Pricing

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

Specifications

Provider
JoshuaSP
Parameters
26B
Released
Sep 2026
Open weights
Yes
Question types
Choice (one of N options), Score (ordered rubric), Yes / no
Mechanism
Diffusion LM
Backbone
google/diffusiongemma-26B-A4B-it
Jev-compatible request
No
Runs on CPU
No
License
—

Benchmarks

Jev Decision IndexECE 0.215
47.3

Jev Decision Index: public 50.1, ECE 0.215, Brier 0.524. Lower ECE means its probabilities can be taken at face value.

Speed & latency

Median latency per call (Decision Index)
260 ms

Compare JoshuaSP diffusiongemma (open-jev) with…

JoshuaSP diffusiongemma (open-jev) vs amos-1-large—/1M inJoshuaSP diffusiongemma (open-jev) vs amos-1-medium—/1M inJoshuaSP diffusiongemma (open-jev) vs Celeris-1 Decision$0.04/1M inJoshuaSP diffusiongemma (open-jev) vs ScaleDown Classify-1$0.04/1M inJoshuaSP diffusiongemma (open-jev) vs Cloudflare clef—/1M inJoshuaSP diffusiongemma (open-jev) vs Cloudflare clef-flash—/1M in

FAQ

How much does JoshuaSP diffusiongemma (open-jev) cost?

JoshuaSP diffusiongemma (open-jev) has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can JoshuaSP diffusiongemma (open-jev) answer?

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

Is JoshuaSP diffusiongemma (open-jev) well calibrated?

On the Jev Decision Index its expected calibration error (ECE) is 0.215; below about 0.05, a stated 80% confidence is right roughly 80% of the time.

Is JoshuaSP diffusiongemma (open-jev) open weight, and can it run on a CPU?

Yes, JoshuaSP diffusiongemma (open-jev) 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 (Jev Decision Index). Pricing is per 1M tokens (USD); confirm with the provider before production use.