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license: apache-2.0
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# Model Card for Model ID

This model improves the instruction-following capabilities of Qwen-2.5-3B-Instruct via preference tuning on the [WildChecklists](https://huggingface.co/datasets/viswavi/wildchecklists/) dataset. Full details are provided in Back to Blackwell: Closing the Loop on Intransitivity in Multi-Objective Preference Fine-Tuning.

# Evaluation

We report performance on instruction-following and general-chat benchmarks, using GPT-5-mini as the judge. Additional evaluation details and settings are provided in the paper.
**Alpacaeval/Arena-Hard**:
|  Model | Alpacaeval (Vanilla) | Alpacaeval (Length-Controlled)  |  Arena-Hard (Vanilla) | Arena-Hard (Style-Controlled)  |
|---|---|---|---|---|
| Qwen-2.5-3B-Instruct  |  24.1 |  12.79  | 20.6  |  19.6 |
|  + PROSPER  |  35.8 | 20.94 | 26.0  | 24.6  |