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HEAD TO HEAD
Alibi Serikbay: jevk5 and wfzyx: von, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | alibi-serikbay/jevk5 | wfzyx/von |
|---|---|---|
| Summary | Qwen3.5-4B with a merged rank-16 LoRA distilled from 17,408 teacher questions and 30,000 public training rows, read out as a temperature-scaled softmax over answer-letter logits. Also in 9B, 2B and GGUF. | A ModernBERT-large encoder with an option-marker head. Premise and options are packed into one sequence and each option's marker is scored in a single bidirectional pass; version 1.2 makes the scoring order-invariant. |
| Decides | choice, score, noul, classify, route | choice, score, noul, classify |
| Architecture | jevk5 | von |
| Fine-tuned from | qwen/qwen3.5-4b | answerdotai/modernbert-large |
| License | apache-2.0 | apache-2.0 |
| Availability | Open weights | Open weights |
| Hosted by | — | — |
| Input price | — | — |
| Decision accuracy | 78.4% | 63.9% |
| Calibration error | 0.035 | 0.045 |
| Valid action rate | — | — |
| Median latency | 13.2 ms | 18 ms |
| p95 latency | — | — |
| Evaluation suite | JevBench public hard tier | JevBench public standard tier |
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.
jevk5 is from Alibi Serikbay and von from wfzyx. Both have open weights you can download and run. Both answer choice, score, noul and classify questions. Only jevk5 answers route. von is the smaller model, at 395M parameters to 4.0B.
They report on different suites — jevk5 78.4% on JevBench public hard tier, von 63.9% on JevBench public standard tier — so the numbers do not rank them. Test both on your own labelled examples.
jevk5: Free (open weights). von: Free (open weights). Open weights cost nothing per call beyond your own hardware.
By their publishers’ figures, jevk5 answers in about 13.2 ms at the median and von in about 18 ms — measured on different hardware, so treat it as a rough guide.
Yes, both: systemone pull alibi-serikbay/jevk5 and systemone pull wfzyx/von download the weights.
| Latest version | 0.3.0 | 1.2.0 |
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| Variants | SHA256SUMS | — |
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| Size of latest version | 7.9 GB | 2.9 GB |
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| Files | 8 | 2 |
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| Downloads | 0 | 0 |
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| Stars | 0 | 0 |
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| Tags | system-one, qwen, lora, distilled, 4b | system-one, encoder, modernbert, 395m |
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| Updated | Sep 26, 2026 | Sep 26, 2026 |
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