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TokenRhythm: neohorse-jev and Rizzo AI Academy: rizzo-flow, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | tokenrhythm/neohorse-jev | rizzo-ai-academy/rizzo-flow |
|---|---|---|
| Summary | TokenRhythm's prefill-only decision model for agent workflows. Built on its NeoHorse-1-4B (a Qwen3.5-4B derivative), it predicts Choice, Noul and Score answers over application-defined options without generating text, with optional single-image input. | A local, Jev-compatible decision model from Rizzo AI Academy. XHToken's Spark-X2.5-4B with a merged typed-decisions LoRA, run on llama.cpp; yes/no, choice and score questions share one prefill of the state and are read from the answer-letter logits. No text is generated. |
| Decides | choice, score, noul, classify, route | choice, score, noul, classify, route |
| Architecture | neohorse | rizzo-flow |
| Fine-tuned from | tokenrhythm/neohorse-1-4b | xhtoken/spark-x2.5-4b |
| License | apache-2.0 | apache-2.0 |
| Availability | Open weights | Open weights |
| Hosted by | — | — |
| Input price | — | — |
| Decision accuracy | 75.3% | 64.8% |
| Calibration error | — | 0.112 |
| Valid action rate | — | — |
| Median latency | — | 195 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.
neohorse-jev is from TokenRhythm and rizzo-flow from Rizzo AI Academy. Both have open weights you can download and run. Both answer choice, score, noul, classify and route questions.
They report on different suites — neohorse-jev 75.3% on JevBench public set (231 items), vLLM, maker's run, rizzo-flow 64.8% on LocalLLaMA/typed-decisions test split (400 cases, 2,000 decisions), Q8_0 — so the numbers do not rank them. Test both on your own labelled examples.
neohorse-jev: Free (open weights). rizzo-flow: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Yes, both: systemone pull tokenrhythm/neohorse-jev and systemone pull rizzo-ai-academy/rizzo-flow download the weights.
| Evaluation suite | JevBench public set (231 items), vLLM, maker's run | LocalLLaMA/typed-decisions test split (400 cases, 2,000 decisions), Q8_0 |
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| Latest version | 2026.09 | 2026.09 |
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| Variants | SHA256SUMS, assets, backbone, dist, package, tokenizer, vision | lora, LICENSE |
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| Size of latest version | 8.5 GB | 22.0 GB |
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| Files | 38 | 17 |
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| Downloads | 0 | 0 |
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| Stars | 0 | 0 |
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| Tags | system-one, qwen, multimodal, vllm, sglang, 4b | system-one, spark, lora, gguf, llama-cpp, 4b |
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| Updated | Sep 30, 2026 | Sep 30, 2026 |
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