POLARIS trains Qwen3.5-9B via GRPO with LLM-as-judge rewards and human-reference injection, yielding a model competitive with larger open-weight models on length adherence and quality, including generalization to 3x training length.
What characterises creativity in narrative writing, and how do we assess it? Research findings from a systematic literature search
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POLARIS: Guiding Small Models to Write Long Stories
POLARIS trains Qwen3.5-9B via GRPO with LLM-as-judge rewards and human-reference injection, yielding a model competitive with larger open-weight models on length adherence and quality, including generalization to 3x training length.