Seedance 2.5 US Reference to Video

US-hosted ByteDance Seedance 2.5 generates video with native audio from up to 30 images, 10 videos, and 10 audio references. Supports reference-guided generation, video editing, and extension at 480p, 720p or 1080p.

Inference$ Commercial useFrom 103 credits per run

About Seedance 2.5 US Reference to Video

stylizedtransformlipsync

Pricing

A run with the default settings costs 103 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

prompttextarea

The text prompt used to generate the video.

taskselectdefault: "reference"

The type of video generation task. Reference uses the supplied media as guidance. Editing modifies a reference video and automatically coerces aspect_ratio and duration to auto. Extension continues a reference video and automatically coerces aspect_ratio to auto. Auto leaves the task type unset so the model decides it from the prompt and references.

Options: auto, reference, editing, extension

image_urlsfile-list

Reference images to guide video generation. Refer to them in the prompt as @Image1, @Image2, etc. Supported formats: JPG, PNG, WebP, BMP, TIFF, GIF, HEIC, HEIF. Max 30 MB per image. Up to 30 images. Total files across all modalities must not exceed 50.

video_urlsfile-list

Reference videos to guide video generation. Refer to them in the prompt as @Video1, @Video2, etc. Supported formats: MP4, MOV. Up to 10 videos. Each video must be 1.8 to 30.2 seconds and no larger than 200 MB; combined duration must not exceed 30.2 seconds. Dimensions must be 300 to 6,000 pixels per side, aspect ratio 0.4 to 2.5, and frame rate 24 to 60 FPS.

audio_urlsfile-list

Reference audio to guide video generation. Refer to them in the prompt as @Audio1, @Audio2, etc. Supported formats: MP3, WAV. Up to 10 files. Each file must be 1.8 to 30.2 seconds and no larger than 15 MB; combined duration must not exceed 30.2 seconds.

resolutionselectdefault: "720p"

Video resolution - 480p for faster generation, 720p for balance, 1080p for high quality.

Options: 480p, 720p

draftbooleandefault: false

Generate a draft preview at 480p, overriding resolution. Returns a draft_id for completing the draft at 1080p within 7 days.

durationselectdefault: "auto"

Duration of the video in seconds. Supports 4 to 30 seconds, or auto to let the model decide based on the prompt.

Options: auto, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30

aspect_ratioselectdefault: "auto"

The aspect ratio of the generated video. Use 16:9 for landscape, 9:16 for portrait/vertical, 1:1 for square, 21:9 for ultrawide cinematic, or auto to let the model decide.

Options: auto, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16

generate_audiobooleandefault: true

Whether to generate synchronized audio for the video, including sound effects, ambient sounds, and lip-synced speech. The cost of video generation is the same regardless of whether audio is generated or not.

bitrate_modeselectdefault: "standard"

Output bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate.

Options: standard, high

codecselectdefault: "auto"

'auto' retains default video codec behaviour; 'H264' uses H.264; 'H265' uses H.265.

Options: auto, H264, H265

seedinteger

Random seed for reproducibility. Note that results may still vary slightly even with the same seed.

end_user_idtext

The unique user ID of the end user.

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