Seedance 2.5 AI Video Generator

Create Videos with Seedance 2.5

Seedance 2.5 is ByteDance's next-generation AI video model for longer, more controllable video creation. It combines text prompts with image, video and audio references to create coherent scenes with synchronized audio, consistent subjects and more precise creative control.

AstraiLab brings the Seedance workflow into a focused AI video generator, so creators can move from prompt and references toward a finished visual in one workspace. The page is structured around the actions that matter first: choosing a workflow, shaping the scene and keeping the creative controls visible.

Text to Video with Seedance 2.5

Text to video starts with the scene you want to see. Describe the subject, action, camera movement, lighting, pacing and mood in one prompt. A strong prompt can establish a one-take moment or a multi-shot story while leaving room for the model to create movement and sound.

The AstraiLab Composer keeps the prompt close to the model and keeps secondary settings quiet. That makes it easier to move from a rough idea to a cinematic direction without turning the first screen into a technical form.

Seedance 2.5 Image to Video

Image to video turns a still reference into a moving scene. Add a reference image, then describe the action, camera path or transition you want to explore. This workflow is useful for animating a character, extending a visual concept, or testing how a composition changes when motion is introduced.

Reference-led creation helps preserve the subject and scene intent while the prompt controls movement, timing and atmosphere. It also gives creators a clear path from an existing image into a video workflow instead of forcing every idea to begin from a blank canvas.

Multimodal Reference Video Generation

Seedance 2.5 is designed for multimodal references rather than a prompt-only workflow. The announced model can work with up to 30 images, 10 video clips and 10 audio clips as references in a single creation workflow. These references can establish a subject, a place, a motion idea, a sound direction or a visual relationship that text alone cannot fully describe.

• Up to 30 image references
• Up to 10 video references
• Up to 10 audio references

The important product idea is not the number of inputs by itself. It is the ability to bring the relevant visual and audio context into the same workflow and refine it without losing the original intent.

Up to 30 Seconds of AI Video

Seedance 2.5 can generate audio-video clips up to 30 seconds in a single pass and supports multi-round extension for longer stories. That gives creators more room for a complete beat, connected action or a short narrative arc than a single isolated moment.

Longer output is most useful when the subject, motion and transition remain coherent. The combination of references, synchronized audio and iterative extension is aimed at helping creators develop a scene instead of collecting disconnected fragments.

More Control for Cinematic Video Creation

Seedance 2.5 introduces more control around how a scene changes. Timestamp-level editing, reference-based editing, camera perspective editing and green-screen editing make the workflow more specific than a single prompt-and-result step.

These controls are especially useful for cinematic storytelling: a camera can move with purpose, an edit can target one moment, and references can keep the subject grounded across a sequence. AstraiLab's interface keeps these ideas ready for a focused creative workspace while the exact generation settings are being finalized.