Seedance 2.0 Fast 480p - Create video from text or image
Generate 480p video using Seedance 2.0 Fast. Faster generation with slightly reduced quality compared to Pro. Supports text-to-video and image-to-video with optional first and last frame images. Also supports reference-to-video: attach up to 9 reference images via reference_images and mention them in the prompt with @Image1..@Image9.
Authorizations
Your Magnific API key. Required for authentication. Learn how to obtain an API key
Body
Text prompt describing the video to generate. Mention references as @Image1, @Image2, ... @Video1, @Video2, ... or @Audio1, @Audio2, ... matching their 1-indexed array order. Maximum 40000 characters. Prompts longer than 5,000 characters are accepted, but results may become less predictable.
40000"A cinematic shot of a cat walking through a neon-lit alley at night"
Optional image to use as the last frame for image-to-video generation. Requires image: the provider rejects a last frame with no first frame. Together they generate a transition video between the two. Mutually exclusive with reference_images, reference_videos and reference_audios. Accepts a publicly accessible URL or a base64-encoded image.
Up to 9 reference images for reference-to-video generation. Each item is a publicly accessible URL or a base64-encoded image. Reference them in the prompt using @Image1, @Image2, ... @Image9 (1-indexed to the array order). Mutually exclusive with image and image_end.
9Up to 3 reference videos. Each item must be a publicly accessible HTTPS URL or a video upload file_id (upl_vid_...). Reference them in the prompt using @Video1, @Video2, or @Video3. Each video must be MP4 or MOV, 2 to 15 seconds, 24 to 60 fps, no larger than 50 MB, with 409600 to 2086876 pixels and an aspect ratio from 0.4 to 2.5. Combined duration must not exceed 15 seconds. Mutually exclusive with image and image_end.
3Up to 3 reference audios, to guide the generated soundtrack with a voice, a piece of music or an ambience. Each item must be a publicly accessible HTTPS URL — unlike reference_images and reference_videos, this field does not take upload file_ids. Reference them in the prompt using @Audio1, @Audio2, or @Audio3.
The audio is not copied into the video. The model composes its own soundtrack, guided by the rhythm and character of what you send: a 120 BPM reference produces a soundtrack at that tempo, but it is a new recording, not your file muxed into the result. A reference with a clear beat, music or speech gives the model something to follow; a flat tone or near-silence does not.
Requirements for each item: MP3 or WAV, 2 to 15 seconds, no larger than 15 MB, and the combined duration of all of them must not exceed 15 seconds.
Requires at least one reference_images or reference_videos entry — the model rejects a request whose only reference is audio. Mutually exclusive with image and image_end.
3Output video aspect ratio. Available options:
film_horizontal_21_9: Ultra-wide cinematic (21:9)widescreen_16_9: Standard widescreen (16:9)classic_4_3: Classic TV format (4:3)square_1_1: Square format (1:1)traditional_3_4: Portrait classic (3:4)social_story_9_16: Vertical/social media story (9:16)film_vertical_9_21: Ultra-tall vertical (9:21)
Note: This parameter only applies to text-to-video and reference-to-video requests. When an image (first frame) is provided for image-to-video generation, aspect_ratio is ignored: the output video inherits the aspect ratio of the start frame.
film_horizontal_21_9, widescreen_16_9, classic_4_3, square_1_1, traditional_3_4, social_story_9_16, film_vertical_9_21