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.
SimpleJev's LoRA adapters and pointer head that turn an open model into a typed-decision model: given a state, a question and the options, it returns a probability for every option without generating text. This entry is the Qwen3.8-27B release; the others are linked.
Decides
choice, score, noul, classify
choice, score, noul
Architecture
biodecision
jevany
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%
86.0%
Calibration error
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0.026
Valid action rate
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Median latency
39 ms
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p95 latency
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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 jevany?
biodecision is from Dimitris Papadopoulos and jevany from SimpleJev. 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; jevany, apache-2.0.
Which is more accurate, biodecision or jevany?
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), jevany 86.0% on SimpleJev Transfer suite (1,046 decisions from seven cross-domain datasets plus robustness slices; the maker's own) — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, biodecision or jevany?
biodecision: Free (open weights). jevany: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Can I run biodecision or jevany locally?
Yes, both: systemone pull lighteternal/biodecision and systemone pull simplejev/jevany 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)
SimpleJev Transfer suite (1,046 decisions from seven cross-domain datasets plus robustness slices; the maker's own)
