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Hacker News · 2026/8/1 20:45:12
Seedance 2.5

Seedance 2.5

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字节跳动刚刚发布了AI视频生成神器Seedance 2.5,这可不是简单的升级版!最吸引人的是,它现在能一口气生成30秒的高质量视频,而且支持不断续写,几分钟的长片也能保持画面和音效连贯,看起来不再像粗糙的"AI味"视频。 以前用AI做视频,只能上传一两张图片或一段文字,现在Seedance 2.5特别"懂你",你最多能扔给它30张图片、10段视频和10段音频当参考,它不仅能学会你的风格,还能理解复杂的创意,比如多个角色、多个场景轮番切换。最牛的是,它提供精准到秒的编辑功能,甚至支持绿幕和镜头语言操作,相当于给了你一个专业剪辑师的能力。 这意味着,以前拍个像样的短片可能需要一个团队,现在普通人用手机就能搞定。短视频创作者、广告设计师甚至学生做课堂展示,都能通过简单描述生成完整故事。以后你随手拍的生活片段,AI就能帮你加工成电影质感的大片,创作门槛大大降低了!
#root { background-color: #fff } HomeModelsBlog & PublicationSeed EdgeJoin UsEN中文HomeModelsBlog & PublicationSeed EdgeJoin UsOne-take Creation, Flexible Referencing: Introducing Seedance 2.5One-take Creation, Flexible Referencing: Introducing Seedance 2.5Date2026-07-31CategoryModelsToday, we are officially launching Seedance 2.5, the new-generation video creation model. Since the release of Seedance 2.0, we have noticed a shift in what users expect from video creation models: from merely generating a clip to completing a creative work. Building on the unified multimodal audio-video joint-generation architecture of Seedance 2.0, Seedance 2.5 centers on foundational generation and reference-based generation, delivering major breakthroughs in long-form storytelling, multimodal reference, and editing. Grounded in real-world use cases, it opens up greater creative imagination and control, and further unlocks productivity.Key highlights include:Up to 30 seconds per generation, with multi-round extensions: Seedance 2.5 can generate high-quality, 30-second audio-video clips in a single pass and supports multiple rounds of extension. It also improves shot transitions and scene changes for stronger continuity in longer videos, and delivers notable gains in image, audio, and motion quality, resulting in a more natural, polished visual quality than commonly seen in AI-generated video. As a result, users can produce high-quality multi-minute content with a consistent audiovisual language, bringing a complete story to life in one take.Fully upgraded multimodal referencing: Users can now input up to 30 images, 10 video clips, and 10 audio clips as reference materials in a single pass. The model also strengthens a range of reference capabilities, including clay render, motion, and creative references, enabling it to better grasp the creator's intent and realize complex ideas that span multiple subjects, scenes, and shot changes.More precise and stable editing capabilities: Seedance 2.5 offers timestamp-level control for targeted editing of audio and video content, notably improving efficiency and controllability. The model also enhances advanced editing features, such as green screen, camera perspective, and reference-based editing, to meet the rigorous demands of professional, complex fields like film and advertising.With advancements in long-form storytelling, multimodal reference, and editing, Seedance 2.5 goes beyond longer single-pass video generation. The model better understands creative intent and delivers the journey from idea to finished video with greater control. Now, we'd like to invite you to watch a short creative film, produced end-to-end by Seedance 2.5.您的浏览器不支持视频播放。Today, Seedance 2.5 is rolling out on Jimeng AI, Doubao Pro, and other platforms, with API access coming soon via BytePlus ModelArk. We invite you to give it a try and share your feedback.Project homepage:https://seed.bytedance.com/seedance2_5Access:Jimeng Web -> Video Generation -> Select Seedance 2.5Doubao Pro -> Video Generation -> Select Seedance 2.530-second long-form storytelling with multi-round extensions: presenting complete stories in a single passSeedance 2.5 extends single-pass video generation from 15 to 30 seconds and further strengthens its storytelling in longer videos. Within 30 seconds, the model can organize multiple logically connected shots so that a story unfolds through setup, development, turning points, and resolution, rather than simply extending a single moment. For example, in a one-take clip of a singer's stage performance, the model portrays the full story of the singer interacting with staff in the dressing room, then walking through the backstage corridor, meeting the dancers, and stepping onto the stage with them for the performance, instead of only the moment of walking on stage.您的浏览器不支持视频播放。T2V prompt: One-take handheld gimbal tracking shot. The camera slowly pushes in through a gap in a heavy red curtai
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