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Avishek Biswas: bev-decider and Rizzo AI Academy: rizzo-flow, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | avishek-biswas/bev-decider | rizzo-ai-academy/rizzo-flow |
|---|---|---|
| Summary | A 0.4B decision model made from the first 20 layers of Qwen3-0.6B plus a small attention head that compares options. It answers choice, noul and score questions in one pass, and choice order cannot change its answer by construction. Non-commercial licence. | 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 | choice, score, noul, classify, route |
| Architecture | bev-decider | rizzo-flow |
| Fine-tuned from | qwen/qwen3-0.6b | xhtoken/spark-x2.5-4b |
| License | cc-by-nc-4.0 | apache-2.0 |
| Availability | Open weights | Open weights |
| Hosted by | — | — |
| Input price | — | — |
| Decision accuracy | 74.7% | 64.8% |
| Calibration error | — | 0.112 |
| Valid action rate | — | — |
| Median latency | — | 195 ms |
| p95 latency | — | — |
| Evaluation suite | avbiswas/bev-decision test split (5,000 held-out questions over 2,617 states), the maker's own | LocalLLaMA/typed-decisions test split (400 cases, 2,000 decisions), Q8_0 |
| Latest version | 2026.09 | 2026.09 |
| Variants | LICENSE-Qwen | lora, LICENSE |
| Size of latest version | 940.1 MB | 22.0 GB |
| Files | 8 | 17 |
| Downloads | 0 | 2 |
| Stars | 0 | 0 |
| Tags | system-one, qwen, non-commercial, 478m | system-one, spark, lora, gguf, llama-cpp, 4b |
| Updated | Oct 7, 2026 | Oct 7, 2026 |
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.
bev-decider is from Avishek Biswas and rizzo-flow from Rizzo AI Academy. Both have open weights you can download and run. Both answer choice, score and noul questions. Only rizzo-flow answers classify and route. bev-decider is the smaller model, at 478M parameters to 4.0B. bev-decider is licensed cc-by-nc-4.0; rizzo-flow, apache-2.0.
They report on different suites — bev-decider 74.7% on avbiswas/bev-decision test split (5,000 held-out questions over 2,617 states), the maker's own, 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.
bev-decider: Free (open weights). rizzo-flow: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Yes, both: systemone pull avishek-biswas/bev-decider and systemone pull rizzo-ai-academy/rizzo-flow download the weights.