Seedance 3.0 is an AI video generation model launched by ByteDance (shown on the seedance3ai.ai website) that is positioned as a foundational model for 'video generation with synchronized audio.' It allows users to combine text, images, videos, and sounds to direct coherent scenes, expand stories, and refine key moments. The model supports up to 50 multimodal references and a maximum 30-second video output in single generation, offering 480p/720p/1080p resolutions, multiple durations starting from 5 seconds, and various aspect ratios including 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, and supports batch generation of up to 10 videos at once. Its technical significance lies in integrating 'multimodal reference understanding + cross-shot consistency + cinematic camera movement intent + audio-visual synchronization + video continuation editing' into a unified generation process, enabling non-professional users to direct complete narratives with natural language. Compared to its predecessor 2.5, 3.0 enhances longer storytelling, finer details (skin texture, lighting, motion), and the ability to assign sounds to specific scenes. In terms of pricing, the official website does not directly disclose prices, typically accessed via cloud APIs such as Volcano Engine or platforms like Jiemocloud. This page guides users to try it with 'Start Your First Video,' suggesting a free trial or pay-as-you-go model. Its positioning serves a wide range of creative scenarios such as advertising, education, film pre-visualization, social media, dance, real estate, and music, making it an industrial productivity model for text/multimodal to video generation.