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.
A Gemma 4 12B fine-tune for typed decisions that also chats and reads images. Ships as GGUF for llama.cpp, holds a 64K context on a 16 GB GPU, and serves /v1/systemone next to /v1/chat/completions.
Decides
choice, score, noul
choice, score, noul, classify, route
Architecture
lumma-fev
winnow
Fine-tuned from
frontiersmind/lumma-0.6b-base
google/gemma-4-12b-it
License
apache-2.0
apache-2.0
Availability
Open weights
Open weights
Hosted by
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Input price
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Decision accuracy
64.0%
85.7%
Calibration error
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Valid action rate
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Median latency
45.8 ms
143 ms
p95 latency
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Evaluation suite
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 lumma-fev and winnow?
lumma-fev is from FrontiersMind and winnow from EldanRing. Both have open weights you can download and run. Both answer choice, score and noul questions. Only winnow answers classify and route. winnow reads up to 64K tokens of state, against 8K tokens for lumma-fev. lumma-fev is the smaller model, at 649M parameters to 12B.
Which is more accurate, lumma-fev or winnow?
They report on different suites — lumma-fev 64.0% on typed-decisions (maker's table; split not stated), winnow 85.7% on JevBench public subset (231 items), Q8_0 — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, lumma-fev or winnow?
lumma-fev: Free (open weights). winnow: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Which is faster, lumma-fev or winnow?
By their publishers’ figures, lumma-fev answers in about 45.8 ms at the median and winnow in about 143 ms — measured on different hardware, so treat it as a rough guide.
Can I run lumma-fev or winnow locally?
Yes, both: systemone pull frontiersmind/lumma-fev and systemone pull eldanring/winnow download the weights.
