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Seedance 2.0 Save Fast API

seedance-2.0-fast:save

Seedance 2.0 Save Fast API combines the Fast route with Save restrictions for products, environments and fictional subjects without real human faces.

Seedance 2.0 Save Fast combines ByteDance's accelerated family variant with APINEED's no-real-face routing restriction. It is intended for rapid iteration on eligible product, environment, object, and fictional-character scenes.

MODALITIES
PriceUsage-based pricing · final cost depends on request and usageCONTEXTN/A

Playground

Generate with Seedance 2.0 Save Fast, review the output, and use the same request shape in your application.

Generation controls are waiting for verified model capability metadata.
Workflow
Usage-based pricing · final cost depends on request and usageSign in required. Final cost uses completed usage.
Output Ready
Seedance family sample
Request preview
{
  "model": "seedance-2.0-fast:save",
  "workflow": "text_to_video",
  "input": {
    "prompt": "A cinematic product shot with deliberate camera movement, natural lighting, and a clear beginning and end."
  },
  "output": {
    "duration_seconds": 1
  }
}

Providers

ByteDance documents the broader model capability. APINEED separately defines the model ID, endpoint, parameter whitelist, authentication, and billing behavior shown on this page.

API NeedUsage-based
Uptime
Total Context
N/A
Max Output
N/A
Input
Usage-based/ 1M
Output
Usage-based/ 1M
Cache Read
Route priced
Cache Write
Route priced

Discount

Compare the published baseline with APINEED pricing for Seedance 2.0 Save Fast API. Final generation cost follows completed server usage. [3]

Availability

APINEED monitors Seedance 2.0 Save Fast API availability. Applications should preserve request and task IDs and handle upstream failures explicitly.

System statusLast 90 days
APINEED GATEWAY99.50% uptime

Seedance 2.0 Save Fast API capabilities

Save Fast is the constrained iteration route: it uses the accelerated Seedance variant while excluding real human faces from prompts and references. [1][2][3]

Rapid eligible-subject drafts

Use it to iterate on products, environments, animation, abstract visuals, and fictional subjects before selecting a final prompt. [2][3]

No real-face workflows

The Save restriction applies even though the underlying Fast route can otherwise handle broader Seedance inputs. [3]

Seedance family direction

Prompts can still describe motion, camera language, lighting, story progression, and synchronized sound associated with the Seedance 2.0 family. [1][2]

Shared asynchronous lifecycle

Creation and polling use the same APINEED video endpoints, with seconds and metadata assembled from explicit controls. [3]

Fast iteration without real-person inputs

Validate eligibility first. Remove real-person identity requirements before iterating on motion or style.

Compare accepted outputs. Track usable clips and retries, not only the time of the first response.

Escalate deliberately. Use Fast or standard Seedance when a real face is needed; use standard Save when final quality deserves a separate pass.

Quick Start

Call Seedance 2.0 Save Fast with the verified APINEED endpoint and model-specific request shape.

1

Create an API key

Store your APINEED key server-side as API_NEED_API_KEY.

export API_NEED_API_KEY=sk-apineed-v1-...
2

Send the request

Use seedance-2.0-fast:save with POST /v1/media/generations.

curl https://apineed.com/v1/media/generations \
  -H "Authorization: Bearer $API_NEED_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedance-2.0-fast:save",
  "workflow": "text_to_video",
  "input": {
    "prompt": "A cinematic product shot with deliberate camera movement, natural lighting, and a clear beginning and end."
  },
  "output": {
    "duration_seconds": 1
  }
}'
3

Poll the task

Save id, then poll GET /v1/media/generations/{id} every few seconds until the task is succeeded or failed.

curl https://apineed.com/v1/media/generations/$TASK_ID -H "Authorization: Bearer $API_NEED_API_KEY"

Seedance 2.0 Save Fast API Endpoint

Create an asynchronous video task, then use its task ID to retrieve status and direct object-storage output URLs.

POST/v1/media/generations
Authorization
Bearer $API_NEED_API_KEY
Content-Type
application/json
HTTP-Referer
optional - your site URL, for rankings
Model
seedance-2.0-fast:save
GET/v1/media/generations/{id}
Authorization
Bearer $API_NEED_API_KEY
Content-Type
application/json
HTTP-Referer
optional - your site URL, for rankings
Model
seedance-2.0-fast:save

Parameters

These controls follow APINEED's current DTO and adapter behavior. Unsupported upstream-only fields are intentionally omitted.

NameTypeValuesDescription
modelstringRequiredUse seedance-2.0-fast:save.
workflowstringtext_to_video, image_to_video, video_referenceSelects a workflow published by the APINEED model catalog.
input.promptstringRequiredDescribe the scene, motion, camera, lighting, and ending state.
input.assetsarrayUp to 2Temporary media URLs with the verified first-frame, last-frame, or reference-video role.
output.duration_secondsinteger1-3600Verified duration seconds control published by the APINEED model catalog.

Seedance 2.0 Save Fast API questions

Practical answers for choosing, integrating, pricing, and operating the Seedance 2.0 Save Fast API on APINEED.

What does Seedance 2.0 Save Fast combine?

It combines ByteDance's accelerated Seedance 2.0 variant with APINEED's Save restriction against real human faces. [2][3]

Which projects fit Save Fast?

It fits rapid prompt iteration for products, environments, objects, abstract visuals, animation, and fictional characters. [3]

What should I use for a real person?

Choose Seedance 2.0 Fast for accelerated real-person work or standard Seedance 2.0 when the full-quality route is preferred. [3]

Does Save Fast have a latency SLA?

No. Fast indicates the accelerated model variant, but APINEED does not guarantee a specific task duration. [2][3]

How do I call Save Fast?

Submit seedance-2.0-fast:save to POST /v1/videos with seconds and the supported metadata fields, then poll the returned task ID. [3]

How is Save Fast priced?

APINEED applies the production Save Fast billing matrix for its supported 720p mode, with separate rates depending on whether the request includes a video reference. [3]

How to deploy Seedance 2.0 Save Fast

Connect Seedance 2.0 Save Fast to your application through the APINEED media API.

1

Add credits

Add APINEED credits before submitting a billable generation.

2

Create an API key

Create and securely store an APINEED API key.

3

Configure the endpoint

Send seedance-2.0-fast:save requests to /v1/media/generations.

4

Track the task

Poll the returned task ID and store the completed video URL from outputs[].

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