Seedance 2.5
Seedance 2.5 is the next step in ByteDance's Seedance video line, extending generation to clips up to 30 seconds with synchronized audio. It supports text-to-video, image-to-video (including first and last frame control), and multi-reference generation from up to 30 reference images, 10 video clips, and 10 audio files, at 480p, 720p, or 1080p across common cinematic aspect ratios. To restyle a whole clip shot for shot, pass a restyled still of its first frame as `first_frame` and the source clip as `reference_video`. Built for advertising, social, and short-form production where longer takes and lip-synced speech matter.
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Seedance 2.5 is the next step in ByteDance's Seedance video line, extending generation to clips up to 30 seconds with synchronized audio. It supports text-to-video, image-to-video (including first and last frame control), and multi-reference generation from up to 30 reference images, 10 video clips, and 10 audio files, at 480p, 720p, or 1080p across common cinematic aspect ratios. To restyle a whole clip shot for shot, pass a restyled still of its first frame as `first_frame` and the source clip as `reference_video`. Built for advertising, social, and short-form production where longer takes and lip-synced speech matter.
Connect Claude, Cursor, VS Code, or Codex to Layer’s MCP server and Seedance 2.5 becomes a tool your agent can reach for — it picks the parameters, runs the generation, and shows you the result in the conversation.
https://mcp.app.layer.ai/mcpAsk your agent
“Use Seedance 2.5 to animate a torch-lit dungeon corridor with a slow dolly forward.”
execute_forge({
"base_model_id": "seedance-v2.5",
"prompt": "A torch-lit dungeon corridor, slow dolly forward",
"batch_size": 1,
"duration_seconds": 4
})Authenticate with a personal access token, post the model’s own form, and poll the inference until it completes. Every field below is accepted by this endpoint.
# Start the generation — returns an inference id straight away.
curl -X POST https://api.app.layer.ai/api/v2/workspaces/$WORKSPACE_ID/base-models/bytedance-seedance-v2-5/inferences \
-H "Authorization: Bearer $LAYER_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"prompt": "A torch-lit dungeon corridor, slow dolly forward"
}'
# Poll until status is "complete" — the response then carries the asset URLs.
curl https://api.app.layer.ai/api/v2/workspaces/$WORKSPACE_ID/inferences/$INFERENCE_ID \
-H "Authorization: Bearer $LAYER_TOKEN"- prompt string
- Describe what to generate, or the change to make.
- aspect_ratio enumdefault LANDSCAPE_16_9_1080p22 options
- The shape and size of the output. Auto follows the shape of the input.
- seed integer
- The starting point for the model's randomness. The same seed and settings give the same result.
- duration_seconds integerdefault 4
- Length of the generated clip, in seconds. Auto lets the model choose.
- generate_audio booleandefault true
- Add sound, generated with the video in the same pass.
- draft booleandefault false
- Render a quick, low-cost preview you can complete at full quality later.
- guidance_file_first_frame file[]
- The frame the video starts on
- guidance_file_last_frame file[]
- The frame the video ends on
- guidance_file_reference_image file[]
- Guides style and content without being modified
- guidance_file_reference_video file[]
- Guides style and motion without being modified
- guidance_file_reference_audio file[]
- Guides style and voice without being modified
- prompt_language string
- The language the prompt is written in, so it reaches the model as you meant it.
Create amazing video content with Seedance 2.5 on Layer
The complete content creation platform for modern game teams. From concepting to polished in-game assets - across Image, 3D, Video, and Audio.
Why use Seedance 2.5 for video?
Cinematic video generation
Seedance 2.5 creates high-fidelity video content suitable for trailers, gameplay previews, and marketing materials with temporal consistency.
Flexible input modes
Generate from text prompts, reference images, or existing video. Supports various aspect ratios and durations for different content needs.
Production-ready output
Clean motion, stable framing, and coherent transitions make outputs ready for direct use in UA campaigns and social content.
Game trailers and cinematic previews
Create attention-grabbing trailers and gameplay previews that showcase your game at its best. High temporal consistency ensures smooth, professional results.
UA video creative at scale
Generate dozens of video ad variants for A/B testing across platforms. Rapid iteration lets performance teams optimize creative angles quickly.
Character animations and in-game cinematics
Bring characters to life with animated sequences for cutscenes, promotional materials, and social content.
FAQ
How much does Seedance 2.5 cost? Is it free?+
How does Layer's pricing work?+
There are no seat fees, feature gates, or plans on Layer. Instead, our platform uses a consumption based system with Creative Units (CUs) with a flexible monthly subscription. Every generation on Layer (image, video, 3D, or audio) consumes a Creative Unit, and you only pay for what you create.
What Elo score does Seedance 2.5 have?+
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