Show HN: HappyHorse video generation on Molyin, free this week (molyin.com)

Alibaba has launched HappyHorse, a family of high-fidelity motion video generation models designed for versatile content creation. Available on Molyin, HappyHorse allows users to generate 3 to 15-second videos at 720p or 1080p resolution, with nine aspect ratios, including unique options like 4:5 and 9:21. For a limited time, users can create up to five videos daily for free, with no hidden fees or watermarks. This model comprises two components: HappyHorse 1.1, which generates videos from text prompts or reference images, and HappyHorse Video Edit, which modifies existing clips using plain-language instructions. The significance of HappyHorse lies in its ability to produce motion that appears fluid and coherent, pushing the boundaries of AI-driven video synthesis. Its technical strengths include native audio generation that aligns with the created footage and a flexible input-output system, allowing for extensive customization and editing capabilities. This event marks a key moment for the AI/ML community as it enhances accessible creative tools for content creators, making sophisticated video production easier and more affordable. The promise of high-quality, customizable video content through HappyHorse could reshape how digital media is generated and consumed, making it a noteworthy development in AI-driven creativity.