A 0.6B decision model on Qwen3-0.6B-Base from the DocsGPT team. Give it a state and typed questions (yes/no, a choice of up to 16 options, a 3- or 4-level score) and it returns calibrated probabilities in one pass, for RAG and agent checks.
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.
Decides
choice, score, noul, classify, rank, route
choice, score, noul, classify
Architecture
arc-decide
biodecision
Fine-tuned from
qwen/qwen3-0.6b-base
qwen/qwen3.5-4b
License
mit
Research use only (several training sources are non-commercial); not validated for patient care
Availability
Open weights
Open weights
Hosted by
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Input price
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Decision accuracy
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75.3%
Calibration error
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Valid action rate
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Median latency
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39 ms
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 arc-decide and biodecision?
arc-decide is from Arc53 and biodecision from Dimitris Papadopoulos. Both have open weights you can download and run. Both answer choice, score, noul and classify questions. Only arc-decide answers rank and route. arc-decide is the smaller model, at 600M parameters to 4.0B. arc-decide is licensed mit; biodecision, other.
Which is more accurate, arc-decide or biodecision?
Only biodecision publishes an accuracy figure (75.3% on BioDecision v2 held-out test set (63,432 overlap-screened decisions from public biomedical benchmarks; the maker's own split)); arc-decide does not, so there is no comparison to make without your own test.
Which is cheaper, arc-decide or biodecision?
arc-decide: Free (open weights). biodecision: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Can I run arc-decide or biodecision locally?
Yes, both: systemone pull arc53/arc-decide and systemone pull lighteternal/biodecision download the weights.
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Evaluation suite
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BioDecision v2 held-out test set (63,432 overlap-screened decisions from public biomedical benchmarks; the maker's own split)
