bytedance/seedance/2.0/fast/text-to-video

Name: Seedance 2.0 Fast Text to Video
Author: Bytedance

ByteDance's most advanced text-to-video model in its fast tier delivering lower latency and cost without compromising on cinematic output, native audio, multi-shot editing, and director-level camera control for professi...

Input

Prompt(string)

The text prompt to generate a video from.

Duration(integer)

The duration of the generated video in seconds. Allowed values: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.

Aspect Ratio(string)

The aspect ratio of the generated video. Allowed values: 16:9, 9:16, 1:1, 4:3, 3:4.

Resolution(string)

The resolution of the video to generate. Allowed values: 480p, 720p.

Idle

Example output — click Run to generate your own

Production endpoint

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

POSThttps://api.sandbase.ai/v1/run

Model IDbytedance/seedance/2.0/fast/text-to-video

Input Schema

4 parameters · 1 required · 3 optional

Parameter	Type	Required	Description
`prompt`	string	Required	The text prompt to generate a video from. · Min length: 3 · Max length: 50000 · Default: "Photorealistic style: Under a clear blue sky, a vast expanse of white daisy fields stretches out. The camera gradually zooms in and finally fixates on a close-up of a single daisy, with several glistening dewdrops resting on its petals."
`duration`	integer	Optional	The duration of the generated video in seconds. · Options: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 · Default: 5 456789101112131415
`resolution`	string	Optional	The resolution of the video to generate. · Options: 480p, 720p · Default: "720p" 480p720p
`aspect_ratio`	string	Optional	The aspect ratio of the generated video. · Options: 16:9, 9:16, 1:1, 4:3, 3:4 · Default: "16:9" 16:99:161:14:33:4

Output Schema

Field	Type	Description
`id`	string	Unique identifier for the generation task
`status`	string	Task status: pending, running, completed, failed, timeout
`model`	string	Model used for the generation
`outputs`	array	Array of output items
`outputs[].url`	string	URL of the generated artifact
`outputs[].content_type`	string	MIME type (e.g. image/png, video/mp4)
`error`	object \| null	Error details if failed, null on success
`error.type`	string	Machine-readable error type code
`error.message`	string	Human-readable error description

Async Workflow

This model uses asynchronous execution. Submit a request and poll for the result.

Submit — POST to /v1/run, receive an id
Poll — GET /v1/run/{id} until status is completed, failed, or timeout
Retrieve — Read outputs from the completed response

Code Examples

Ready-to-run snippets

# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
  "model": "bytedance/seedance/2.0/fast/text-to-video",
  "prompt": "Photorealistic style: Under a clear blue sky, a vast expanse of white daisy fields stretches out. The camera gradually zooms in and finally fixates on a close-up of a single daisy, with several glistening dewdrops resting on its petals.",
  "duration": 5,
  "resolution": "720p",
  "aspect_ratio": "16:9"
}'

# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
  -H "Authorization: Bearer YOUR_API_KEY"

← Back to Seedance 2.0 Fast Text to Video

API README

Seedance 2.0 Fast Text to Video

ByteDance's fast-tier text-to-video model — delivers lower latency and ~20% cost savings compared to the standard version, without compromising on cinematic output, native audio, and camera control.

Need higher resolution (1080p)? Try Seedance 2.0 Text to Video.
Need image-driven generation? Try Seedance 2.0 Fast Image to Video.
Need reference-guided generation? Try Seedance 2.0 Fast Reference to Video.

Highlights

Lower latency — Optimized for speed, ideal for iterative workflows and rapid prototyping.

Native audio generation — Automatically creates synchronized sound effects, ambient audio, and lip-synced speech.

Flexible duration — Generate 4 to 15 second clips. Use -1 for model-intelligent duration selection.

Up to 720p — Supports 480p and 720p output (1080p not available in fast tier).

Pricing

Non-4K rates use Volcengine's non-promotional list price converted at 1 USD = 6.74 CNY. All 4K output rates use the confirmed reference price.

Resolution	Output price per second
480p	$0.05
720p	$0.12

Default: 5 output seconds at 720p = $0.59. Input images do not add a video-input charge. Audio generation is included at no extra cost.

Technical Specs

Spec	Value
Input	Text prompt
Output	MP4 video with optional audio
Resolution	480p / 720p
Aspect ratios	16:9, 9:16, 1:1, 4:3, 3:4, 21:9
Duration	4–15 seconds
Execution	Async (submit → poll for result)
Typical latency	1–5 minutes

Seedance 2.0 Text to Video — Standard version with 1080p support
Seedance 2.0 Fast Image to Video — Fast image-driven generation
Seedance 2.0 Fast Reference to Video — Fast multi-reference generation