img_uuid, and finish the job through polling or an HTTPS callback.Seedance 2.0 Fast API
Access Seedance 2.0 Fast through the independent GoEnhance Open API. Send a prompt with optional first and last frame images, keep the returned
Create an API Key
Two Input Modes on One Video Endpoint
Generate Video from a Prompt
Set model to seedance-2-0-fast and provide the required prompt. Choose duration, quality, aspect ratio, audio generation, and filtering behavior.
Guide Motion with One or Two Images
Provide one public URL in image_urls to set the first frame, or two URLs to set the first and last frames. Compatible aliases are also documented.
Validate requests against the live GoEnhance contract before submitting production jobs.
Seedance 2.0 Fast API Parameters
Exact Model ID
Send <code>model: seedance-2-0-fast</code>. Both <code>model</code> and <code>prompt</code> are required.
Optional Frame Images
Use <code>image_urls</code> with one or two public image URLs for first-frame or first-and-last-frame control.
4–15 Second Duration
<code>duration</code> accepts whole seconds from 4 through 15 and defaults to 5.
480p or 720p
Set <code>quality</code> to <code>480p</code> or <code>720p</code>; the documented default is <code>720p</code>.
Seven Aspect Ratios
Choose <code>16:9</code>, <code>9:16</code>, <code>1:1</code>, <code>4:3</code>, <code>3:4</code>, <code>21:9</code>, or <code>adaptive</code>.
Audio and Filtering Controls
Synchronized audio defaults on. Content filtering defaults on and, for this route, does not change the listed price.
Rates shown are from the current GoEnhance route documentation; check the live reference before budgeting a large run.
Seedance 2.0 Fast API Pricing
480p: 4.81 tokens/s
GoEnhance lists 480p at 4.81 tokens per generated second, equivalent to $0.096 per second at $0.02 per token.
720p: 10.47 tokens/s
GoEnhance lists 720p at 10.47 tokens per generated second, equivalent to $0.209 per second at $0.02 per token.
Duration-Based Cost
Estimate Seedance 2.0 Fast API pricing as the selected per-second rate multiplied by requested output duration. Native audio has no extra charge.
Integrate Seedance 2.0 Fast in Three Steps
1
1. Build the Request
POST to
https://api.goenhance.ai/api/v1/videos/generations with bearer authentication, the exact model ID, a prompt, and any optional frame or output settings. 2
2. Save the Task ID
Check HTTP status and the JSON
code/msg. On success, persist data.img_uuid rather than waiting for video bytes in the submit response. 3
3. Poll or Receive a Callback
Query
/api/v1/jobs/detail?img_uuid=... or supply a public HTTPS callback_url, then store the completed asset returned by your job workflow.Build repeatable video workflows while keeping validation, job state, and cost handling in your application.
Seedance 2.0 Fast API Use Cases
Creative Automation
Turn structured prompts into short video assets from a backend content pipeline.
First-Frame Animation
Animate an approved opening still while keeping task submission consistent with text-to-video jobs.
First-to-Last Transitions
Use two images to guide the opening and closing frames of a generated clip.
Campaign Variations
Queue alternate prompts, durations, or aspect ratios as separate traceable jobs.
Prototype Storyboards
Generate short motion studies for previsualization and internal creative review.
Multi-Format Delivery
Request landscape, portrait, square, or adaptive framing for different product surfaces.
Practical answers for integration, pricing, inputs, and task completion.