An open Jev-style LoRA on Qwen3.5-9B from Bespoke Labs, trained on 2,676 contrastively curated examples to score the allowed answer tokens directly for enums, booleans and rubric levels. Recipe, data and a public benchmark suite are released with it.
One of the earliest Jev-shaped scorers. A sequence-classification head on Qwen3.5-4B-Base scores each (state, question, option) triple and softmaxes per question. Non-commercial licence.
Decides
choice, noul, score, classify, route
choice, score, noul, classify
Architecture
nimble
scorer
Fine-tuned from
qwen/qwen3.5-9b
qwen/qwen3.5-4b-base
License
apache-2.0
cc-by-nc-4.0
Availability
Open weights + hosted API
Open weights
Hosted by
Bespoke Labs
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Input price
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Decision accuracy
90.1%
70.7%
Calibration error
0.054
0.044
Valid action rate
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Median latency
106 ms
112 ms
p95 latency
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Evaluation suite
Bespoke held-out set (324 examples)
Figures are from each model’s manifest; accuracy and latency are what the publishers report, on their own suites and hardware. Add a third model.
Questions
What is the difference between bespoke-nimble-9b and system-one-qwen3-5-4b-scorer?
bespoke-nimble-9b is from Bespoke Labs and system-one-qwen3-5-4b-scorer from pngwn. bespoke-nimble-9b has open weights and a hosted API; system-one-qwen3-5-4b-scorer has open weights you can download and run. Both answer choice, noul, score and classify questions. Only bespoke-nimble-9b answers route. system-one-qwen3-5-4b-scorer is the smaller model, at 4.0B parameters to 9.0B. bespoke-nimble-9b is licensed apache-2.0; system-one-qwen3-5-4b-scorer, cc-by-nc-4.0.
Which is more accurate, bespoke-nimble-9b or system-one-qwen3-5-4b-scorer?
They report on different suites — bespoke-nimble-9b 90.1% on Bespoke held-out set (324 examples), system-one-qwen3-5-4b-scorer 70.7% on author-reported — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, bespoke-nimble-9b or system-one-qwen3-5-4b-scorer?
bespoke-nimble-9b: Hosted, price not published, or free to self-host. system-one-qwen3-5-4b-scorer: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Which is faster, bespoke-nimble-9b or system-one-qwen3-5-4b-scorer?
By their publishers’ figures, bespoke-nimble-9b answers in about 106 ms at the median and system-one-qwen3-5-4b-scorer in about 112 ms — measured on different hardware, so treat it as a rough guide.
Can I run bespoke-nimble-9b or system-one-qwen3-5-4b-scorer locally?
Yes, both: systemone pull bespoke-labs/bespoke-nimble-9b and systemone pull pngwn/system-one-qwen3-5-4b-scorer download the weights.
