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HEAD TO HEAD
Mapika: decider and EldanRing: winnow, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | mapika/decider | eldanring/winnow |
|---|---|---|
| Summary | The most-downloaded open System One reproduction. Merged Qwen3.5 fine-tunes, trained on about 95 public decision sets, then calibration-aware RL and a rank-64 LoRA, that softmax letter logits at an answer slot. | 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, classify, route | choice, score, noul, classify, route |
| Architecture | decider | winnow |
| Fine-tuned from | qwen/qwen3.5-2b-base | google/gemma-4-12b-it |
| License | apache-2.0 | apache-2.0 |
| Availability | Open weights | Open weights |
| Hosted by | — | — |
| Input price | — | — |
| Decision accuracy | 80.2% | 85.7% |
| Calibration error | 0.038 | — |
| Valid action rate | — | — |
| Median latency | 3.2 ms | 143 ms |
| p95 latency | — | — |
| Evaluation suite | Decider 67-task regression set | JevBench public subset (231 items), Q8_0 |
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.
decider is from Mapika and winnow from EldanRing. Both have open weights you can download and run. Both answer choice, score, noul, classify and route questions. decider is the smaller model, at 2.0B parameters to 12B.
They report on different suites — decider 80.2% on Decider 67-task regression set, 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.
decider: Free (open weights). winnow: Free (open weights). Open weights cost nothing per call beyond your own hardware.
By their publishers’ figures, decider answers in about 3.2 ms at the median and winnow in about 143 ms — measured on different hardware, so treat it as a rough guide.
Yes, both: systemone pull mapika/decider and systemone pull eldanring/winnow download the weights.
| Latest version | 2026.09 | 2026.09 |
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| Variants | — | gguf, SHA256SUMS, LICENSE, NOTICE |
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| Size of latest version | 3.5 GB | 34.2 GB |
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| Files | 4 | 8 |
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| Downloads | 0 | 0 |
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| Stars | 0 | 0 |
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| Tags | system-one, qwen, rl, calibrated, 2b | system-one, gemma, gguf, vision, llama-cpp, 12b |
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| Updated | Sep 27, 2026 | Sep 27, 2026 |
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