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HEAD TO HEAD
Surogate (Invergent): rune and Featherless AI: simple-jev, compared on what they decide, where they run, what they cost and what their publishers report.
| Property | surogate/rune | featherless-ai/simple-jev |
|---|---|---|
| Summary | Invergent's decision model for text and images. A fine-tune of Gemma-4-26B-A4B (about 4B parameters active per token) that answers Choice, Noul and Score questions, with an optional thinking mode for harder questions. | Featherless AI's open server that turns a stock Hugging Face language model into a typed-decision endpoint. It reads the next-token logits for each question and builds the Choice, Score or Noul answer itself; no classifier head is trained and no JSON is generated. |
| Decides | choice, score, noul, classify, route | choice, score, noul, classify, route |
| Architecture | rune | simple-jev |
| Fine-tuned from | google/gemma-4-26b-a4b-it | google/gemma-4-26b-a4b-it |
| License | apache-2.0 | apache-2.0 |
| Availability | Open weights + hosted API | Open weights + hosted API |
| Hosted by | Invergent | Featherless AI |
| Input price | — | — |
| Decision accuracy | — | — |
| Calibration error | — | — |
| Valid action rate | — | — |
| Median latency | — | — |
| 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.
rune is from Surogate (Invergent) and simple-jev from Featherless AI. Both have open weights and a hosted API. Both answer choice, score, noul, classify and route questions.
Neither publishes an accuracy figure. Test both on your own labelled examples.
rune: Hosted, price not published, or free to self-host. simple-jev: Hosted, price not published, or free to self-host. Open weights cost nothing per call beyond your own hardware.
Yes, both: systemone pull surogate/rune and systemone pull featherless-ai/simple-jev download the weights.
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| Evaluation suite | — | — |
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| Latest version | 2026.09 | 2026.09 |
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| Variants | — | — |
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| Size of latest version | — | — |
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| Files | 0 | 0 |
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| Downloads | 0 | 0 |
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| Stars | 0 | 0 |
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| Tags | system-one, gemma, moe, multimodal, vision, 26b | system-one, training-free, logit-readout, gemma, qwen |
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| Updated | Sep 30, 2026 | Sep 30, 2026 |
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