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.
FrontiersMind's decision model on a base it pre-trained from scratch. Each question reads the state and its own tokens once and a 256-dimension pointer head scores the options; Choice and Score take up to 255 entries, and nothing is generated.
Decides
choice, score, noul, classify
choice, score, noul
Architecture
biodecision
lumma-fev
Fine-tuned from
qwen/qwen3.5-4b
frontiersmind/lumma-0.6b-base
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%
64.0%
Calibration error
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Valid action rate
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Median latency
39 ms
45.8 ms
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 lumma-fev?
biodecision is from Dimitris Papadopoulos and lumma-fev from FrontiersMind. Both have open weights you can download and run. Both answer choice, score and noul questions. Only biodecision answers classify. lumma-fev is the smaller model, at 649M parameters to 4.0B. biodecision is licensed other; lumma-fev, apache-2.0.
Which is more accurate, biodecision or lumma-fev?
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), lumma-fev 64.0% on typed-decisions (maker's table; split not stated) — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, biodecision or lumma-fev?
biodecision: Free (open weights). lumma-fev: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Which is faster, biodecision or lumma-fev?
By their publishers’ figures, biodecision answers in about 39 ms at the median and lumma-fev in about 45.8 ms — measured on different hardware, so treat it as a rough guide.
Can I run biodecision or lumma-fev locally?
Yes, both: systemone pull lighteternal/biodecision and systemone pull frontiersmind/lumma-fev 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)
