Seedance-2.5 is a next-generation professional-grade multimodal video-creation model launched by ByteDance’s Doubao large-model team. It supports direct output of single-segment 30-second videos and accepts up to 50 reference inputs per request (30 images, 10 videos, 10 audio clips). It provides stronger instruction control, professional-grade controllable video editing and extension capabilities. It natively supports generation in over 10 languages, ensuring professional storytelling can be reliably deployed in global scenarios and advancing video generation into an industrial new stage of “long-form narrative × strong references × quasi-editing × multilingual.” The model’s creative capabilities are continuously upgraded: realism is significantly enhanced; lighting and shadow rendering, performance understanding and execution, and camera movement are all closer to real-world filming. The finished footage’s quality and narrative credibility are greatly improved, offering professional creators and enterprise clients more efficient and controllable video production capabilities.