A 4B biomedical decision model by Dimitris Papadopoulos: Qwen3.5-4B tuned with Together AI's Tev1 recipe on 1.75M pharma, clinical-trial and literature decisions. One forward pass gives a temperature-scaled probability per option. Research use only.
Ruoxi Qiu's decision adapter for a frozen Qwen3.8-27B: a 6.3M-parameter LoRA on the last four text layers plus a numerical prior. One shared state feeds isolated question branches; each Choice, Noul or Score question returns probabilities with no generated tokens.
Decides
choice, score, noul, classify
choice, noul, score
Architecture
biodecision
canopy-jev
Fine-tuned from
qwen/qwen3.5-4b
qwen/qwen3.8-27b
License
Research use only (several training sources are non-commercial); not validated for patient care
apache-2.0
Availability
Open weights
Open weights
Hosted by
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Input price
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Decision accuracy
75.3%
87.4%
Calibration error
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Valid action rate
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Median latency
39 ms
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p95 latency
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 biodecision and canopy-jev?
biodecision is from Dimitris Papadopoulos and canopy-jev from Ruoxi Qiu. Both have open weights you can download and run. Both answer choice, score and noul questions. Only biodecision answers classify. biodecision is the smaller model, at 4.0B parameters to 27B. biodecision is licensed other; canopy-jev, apache-2.0.
Which is more accurate, biodecision or canopy-jev?
They report on different suites — biodecision 75.3% on BioDecision v2 held-out test set (63,432 overlap-screened decisions from public biomedical benchmarks; the maker's own split), canopy-jev 87.4% on JevBench public set (231 items; 202 correct), the maker's own fresh zero-shot run with the upstream scorer — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, biodecision or canopy-jev?
biodecision: Free (open weights). canopy-jev: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Can I run biodecision or canopy-jev locally?
Yes, both: systemone pull lighteternal/biodecision and systemone pull camellia86/canopy-jev download the weights.
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Evaluation suite
BioDecision v2 held-out test set (63,432 overlap-screened decisions from public biomedical benchmarks; the maker's own split)
JevBench public set (231 items; 202 correct), the maker's own fresh zero-shot run with the upstream scorer
