alibaba/happyhorse-1.1 is Alibaba’s upgraded multimodal AI video generation model built for text-to-video, image-to-video, and reference-guided video creation. It focuses on producing high-quality short videos with stronger motion dynamics, better subject consistency, improved prompt adherence, and native synchronized audio generation. Compared with HappyHorse 1.0, version 1.1 improves visual quality, controllability, and scene coherence, making it a strong choice for cinematic storytelling, talking-character videos, ads, and branded content.