ResearchBenchmarksStory Generation Quality on 180 held-out prompts Far OOD 8–12kStory Generation Quality on 180 held-out prompts Far OOD 8–12kFollow44.1Story Quality ScorePOLARIS41.89542.997544.145.2025Jun 2, 2026Evaluation resultsMethodMethodLinksStory Quality ScorePOLARISP=9BP=9B2026.0644.1