Video Generation

Seedance 2.0 Fast

Speed-optimized Seedance 2.0 variant for fast, cinematic video generation via Segmind. Supports text-to-video (multi-shot), image-to-video (first frame or first+last frame), and multimodal reference-based generation with optional co-generated audio.

Typical generation time: 1-4 minutes

Model

Text describing the video. Required unless you provide a first frame image or reference images.

First Frame Image

Maximum file size: 10 MB

Starting frame image URL for image-to-video. Cannot be used with referenceImages.

Last Frame Image

Maximum file size: 10 MB

Ending frame image URL. Requires firstFrameUrl. Guides the transition between two frames.

Reference Images

Maximum file size: 10 MB

Up to 9 reference images for character/style consistency (cite as image 1, image 2). Cannot be used with firstFrameUrl.

Reference Videos

Maximum file size: 100 MB

Up to 3 reference videos (2-15s each) for motion/style transfer (cite as video 1). Billed at the video-to-video rate.

Reference Audios

Maximum file size: 50 MB

Up to 3 reference audio files (MP3, cite as audio 1). Requires at least one image/video input.

Video length in seconds (4-15), or Auto.

Output resolution. Fast supports up to 720p.

Optional. Leave empty for no audio. The text is converted to speech (ElevenLabs) and added over the video.

Language of the generated voiceover.

Choose a voice or use the default voice for the selected language. You can preview voices before selecting.

Output aspect ratio. Use 16:9 for landscape, 9:16 for vertical social video.

Co-generate synchronized audio (dialogue, SFX, ambient, music). Enable for final delivery, disable for fast drafts.

Output encoding bitrate. "High" gives better visual fidelity and fewer compression artifacts (larger files). Does not affect price.

Bypass the content moderation pre-filter (baseline BytePlus safety still applies). Enable for artistic content that triggers false positives.

Reproducibility seed (-1 to 2147483647). Use -1 for random output, set a fixed value to iterate on the same scene.

Explore example prompts and their results.

  • Text-to-Video (Cinematic)Video
  • Image-to-VideoVideo

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