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SimpleJev: jevany and Maziyar Panahi: modernjev-decide, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | simplejev/jevany | maziyar-panahi/modernjev-decide |
|---|---|---|
| Summary | SimpleJev's LoRA adapters and pointer head that turn an open model into a typed-decision model: given a state, a question and the options, it returns a probability for every option without generating text. This entry is the Qwen3.8-27B release; the others are linked. | A 149.6M ModernBERT-base cross-encoder with a scalar head that picks an agent's next action or tool from labels and descriptions you supply. Each option is scored against the state and a softmax ranks the set; no text is generated. Experimental preview, not calibrated. |
| Decides | choice, score, noul | choice, rank, route |
| Architecture | jevany | modernjev |
| Fine-tuned from | qwen/qwen3.8-27b | answerdotai/modernbert-base |
| License | apache-2.0 | apache-2.0 |
| Availability | Open weights | Open weights |
| Hosted by | — | — |
| Input price | — | — |
| Decision accuracy | 86.0% | 73.4% |
| Calibration error | 0.026 | — |
| Valid action rate | — | — |
| Median latency | — | — |
| p95 latency | — | — |
| Evaluation suite | SimpleJev Transfer suite (1,046 decisions from seven cross-domain datasets plus robustness slices; the maker's own) | AgentToolDecisions-180K held-out test, next action type (1,158 decisions, 3 choices; the maker's split) |
| Latest version | 2026.09 | 2026.09 |
| Variants | LICENSE, NOTICE | — |
| Size of latest version | 252.1 MB | 574.1 MB |
| Files | 11 | 5 |
| Downloads | 0 | 0 |
| Stars | 0 | 0 |
| Tags | system-one, qwen, lora, pointer-head, 27b | system-one, encoder, modernbert, cross-encoder, tool-routing, preview, 149.6m |
| 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.
jevany is from SimpleJev and modernjev-decide from Maziyar Panahi. Both have open weights you can download and run. Both answer choice questions. Only jevany answers score and noul. Only modernjev-decide answers rank and route. modernjev-decide is the smaller model, at 150M parameters to 27B.
They report on different suites — jevany 86.0% on SimpleJev Transfer suite (1,046 decisions from seven cross-domain datasets plus robustness slices; the maker's own), modernjev-decide 73.4% on AgentToolDecisions-180K held-out test, next action type (1,158 decisions, 3 choices; the maker's split) — so the numbers do not rank them. Test both on your own labelled examples.
jevany: Free (open weights). modernjev-decide: Free (open weights). Open weights cost nothing per call beyond your own hardware.
Yes, both: systemone pull simplejev/jevany and systemone pull maziyar-panahi/modernjev-decide download the weights.