jiwo 0.8B v2

eljiwoDecision modelOpen weights

jiwo 0.8B v2 by eljiwo is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text. It scores 24.9 on the Jev Decision Index (rank 115).

Pricing

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

Specifications

Provider: eljiwo
Parameters: 752M
Released: Oct 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/Qwen3.5-0.8B
Jev-compatible request: Yes
Runs on CPU: Yes
License: apache-2.0
Hugging Face: eljiwo/jiwo-0.8b

Benchmarks

Jev Decision IndexECE 0.068: 24.9
Benchmark Heaven JevBench (Capability): 47.2

Jev Decision Index: public 29.6, ECE 0.068, Brier 0.538. Lower ECE means its probabilities can be taken at face value.

Self-reported by the publisher

The model's own claims, often on its own sets or a self-run copy of a public suite. Not independently verified and never ranked alongside measured results.

Jev Decision Index public suite (self-run)Self-reportedDecision Index public balanced skill, edition 0.3 kit (release-v3), self-run: 29.6

Speed & latency

Median latency per call (Decision Index)

36 ms

Compare jiwo 0.8B v2 with…

jiwo 0.8B v2 vs amos-1-large—/1M in jiwo 0.8B v2 vs amos-1-medium—/1M in jiwo 0.8B v2 vs Celeris-1 Decision$0.04/1M in jiwo 0.8B v2 vs ScaleDown Classify-1$0.04/1M in jiwo 0.8B v2 vs Cloudflare clef—/1M in jiwo 0.8B v2 vs Cloudflare clef-flash—/1M in

FAQ

How much does jiwo 0.8B v2 cost?

jiwo 0.8B v2 has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can jiwo 0.8B v2 answer?

jiwo 0.8B v2 answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.

Is jiwo 0.8B v2 well calibrated?

On the Jev Decision Index its expected calibration error (ECE) is 0.068; below about 0.05, a stated 80% confidence is right roughly 80% of the time.

Is jiwo 0.8B v2 open weight, and can it run on a CPU?

Yes, jiwo 0.8B v2 has open weights. It is small enough to run on a CPU.

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