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OutisR
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Model Details
Model Provider
OutisR
Model Tree
mistralai/Mistral-Nemo-Base-2407
Input Modalities
Output Modalities
Supported Functionality
Hearthveil is a narrative-roleplay series built around one idea: characters that feel alive
Design principles:
{{user}}. Characters act; the user decides.Raw completion (no built-in chat template). For chat frontends use Mistral V3-Tekken (SillyTavern: Mistral V3-Tekken preset).
| Element | Style |
|---|---|
| Actions / narration | plain text |
| Dialogue | "in quotes" |
| Thoughts | in asterisks |
NeMo is sensitive to high temperatures, so keep them moderate.
Roleplay: temperature 0.7–0.9 · min_p 0.025–0.05 · repetition_penalty 1.05
text
You are {{char}}, described in detail below. Continue the story with {{user}}.- Stay in character; let the persona evolve with the story.- Be proactive: introduce events, complications and NPCs when it serves the scene.- Use all five senses; prefer concrete detail over purple prose.- Never write {{user}}'s actions, words or thoughts.- Keep consequences consistent with the story.| Metric | Test setup | MN-Hearthveil-12B | Stock Mistral NeMo 12B | |
|---|---|---|---|---|
| Slop / 1k words, RP replies | 200 multi-turn RP prompts, stock-phrase lexicon match | ↓ | 16.9 | 21.3 |
| Slop / 1k words, stories | 144 bare-prompt short stories | ↓ | 8.1 | 10.2 |
| Swipe diversity | 8 swipes per turn on 100 RP chats, LLM judge with rubric (0–1) | ↑ | 0.66 | 0.47 |
| Attractor rate | 144 bare-prompt stories, share hitting overused names/places | ↓ | 61% | 91% |
| Impersonation rate | 200 RP chats, share of replies acting or speaking for {{user}} | ↓ | 2.2% | 8.7% |
| Character adherence | role-play-bench (EN), misalignment checks (0–100) | ↑ | 76.9 | 68.5 |
| MMLU | lm-eval-harness, 5-shot | = | 67.6% | 68.0% |
| HellaSwag | lm-eval-harness, 0-shot | = | 83.3% | 83.5% |
Released under Apache 2.0, the same licence as the upstream model. All credit for the base weights goes to Mistral AI and NVIDIA. Hearthveil is an independent project, not affiliated with or endorsed by Mistral AI and NVIDIA.
Source: Mistral NeMo Base model card.
| Benchmark | Score |
|---|---|
| HellaSwag (0-shot) | 83.5% |
| Winogrande (0-shot) | 76.8% |
| OpenBookQA (0-shot) | 60.6% |
| CommonSenseQA (0-shot) | 70.4% |
| TruthfulQA (0-shot) | 50.3% |
| MMLU (5-shot) | 68.0% |
| TriviaQA (5-shot) | 73.8% |
| NaturalQuestions (5-shot) | 31.2% |
| MMLU, Russian | 59.2% |
You are {{char}}, described in detail below. Continue the story with {{user}}.- Stay in character; let the persona evolve with the story.- Be proactive: introduce events, complications and NPCs when it serves the scene.- Use all five senses; prefer concrete detail over purple prose.- Never write {{user}}'s actions, words or thoughts.- Keep consequences consistent with the story.