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Seedance 2.0 API

The Seedance 2.0 API on APIMart gives you ByteDance's Seedance 2.0 video model, listed on Volcano Engine as Doubao-Seedance-2.0, for text to video, image to video, first and last frame and multimodal reference generation with native audio. One Seedance API key gives you every Seedance 2 API variant—seedance-2.0, seedance-2.0-fast and seedance-2.0-mini.

Text to VideoImage to VideoNative AudioUp to 4K

Service Highlights

  • Official Discounts
  • Pay-as-you-go
  • Fast & Low Latency
Input
279 / 4000 characters
5s
Generate Audio
Return Last Frame
Web Search
Content Moderation
Asset URL0/9
Asset URL0/2
Asset URL0/3

Upload reference audio (requires image or video)

WAV, MP3 (max 20MB, up to 3 audios, duration ≤ 15s)

Asset URL0/3
Output

Video link valid for 72 hours

Seedance 2.0 API Pricing

Transparent pricing with no hidden fees. Pay only for what you use.

VariantTierGoldCurrent pricePlatinumDiamondOfficialYour savings
seedance-2.0480P & uploaded videos0.4Credits(~$0.04)/secref. duration + gen. duration0.38Credits(~$0.038)/sec0.36Credits(~$0.036)/sec0.5Credits(~$0.05)/sec20%
480P0.66Credits(~$0.066)/sec0.627Credits(~$0.0627)/sec0.594Credits(~$0.0594)/sec0.825Credits(~$0.0825)/sec20%
720P & uploaded videos0.8584Credits(~$0.0858)/secref. duration + gen. duration0.8155Credits(~$0.0815)/sec0.7726Credits(~$0.0773)/sec1.073Credits(~$0.1073)/sec20%
720P1.42Credits(~$0.142)/sec1.349Credits(~$0.1349)/sec1.278Credits(~$0.1278)/sec1.775Credits(~$0.1775)/sec20%
1080P & uploaded videos2.1568Credits(~$0.2157)/secref. duration + gen. duration2.049Credits(~$0.2049)/sec1.9411Credits(~$0.1941)/sec2.696Credits(~$0.2696)/sec20%
1080P3.544Credits(~$0.3544)/sec3.3668Credits(~$0.3367)/sec3.1896Credits(~$0.319)/sec4.43Credits(~$0.443)/sec20%
4K & uploaded videos4.4432Credits(~$0.4443)/secref. duration + gen. duration4.221Credits(~$0.4221)/sec3.9989Credits(~$0.3999)/sec5.554Credits(~$0.5554)/sec20%
4K7.22Credits(~$0.722)/sec6.859Credits(~$0.6859)/sec6.498Credits(~$0.6498)/sec9.025Credits(~$0.9025)/sec20%

* Actual costs are subject to final output.

* uploaded videos pricing = (ref. duration + gen. duration) × current price

ByteDance Seedance 2.0 API for Text to Video and Image to Video

The Seedance 2.0 API brings ByteDance's Seedance 2.0 AI video generator to APIMart. Generate 4–15 second clips at up to 1080p or 4K from text, images, video and audio references, with sound created in the same pass.

50K+

Active Users

99.9%

Uptime

2x

Faster

—

Cost Savings

Seedance 2 API Example: Text to Video and Image to Video

Call the ByteDance Seedance 2.0 API on APIMart with one POST request. Generation is asynchronous: submit a task, then poll the task endpoint to get the video URL.

  1. 1

    Authenticate Seedance 2.0 API requests

    Save the key you created above in the APIMART_API_KEY environment variable and send it as Authorization: Bearer <key> on every Seedance 2.0 API request.

  2. 2

    Submit a Seedance 2.0 task

    POST /v1/videos/generations with model seedance-2.0, your prompt, size, resolution and duration. Add image_urls for image to video, or video_urls and audio_urls for references. The Seedance 2.0 API response contains the task ID in data[0].task_id.

  3. 3

    Get the Seedance 2.0 result

    Poll GET /v1/tasks/{task_id} until status is completed, then read the video URL from data.result.videos[0].url[0]. If a Seedance 2.0 API task fails, the reason is returned in data.error.message.

    See the Seedance 2.0 API reference for every parameter, scenario and response field.

POST /v1/videos/generations
curl -X POST https://api.apimart.ai/v1/videos/generations \
  -H "Authorization: Bearer $APIMART_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2.0",
    "prompt": "A cinematic tracking shot of a red vintage car driving along a coastal road at sunset, waves crashing below, warm golden light",
    "size": "16:9",
    "resolution": "720p",
    "duration": 5
  }'

Seedance 2.0 API Parameters

ParameterTypeRequiredDefaultDescription
modelstringRequiredDefault: seedance-2.0seedance-2.0 (standard), seedance-2.0-fast or seedance-2.0-mini. Fast and Mini support the same features at up to 720p.
promptstringOptionalDefault: —Seedance 2.0 API video description. Required for text to video and optional when you pass images or reference video. Up to 4,000 characters; around 500 is recommended.
durationintegerOptionalDefault: 5Seedance 2.0 API clip length from 4 to 15 seconds.
sizestringOptionalDefault: 16:916:9, 9:16, 1:1, 4:3, 3:4, 21:9 or adaptive (matches the input image or video).
resolutionstringOptionalDefault: 720p480p or 720p; 1080p and 4k are available on seedance-2.0 only.
seedintegerOptionalDefault: —Random seed. The same seed with the same request gives similar, but not identical, results.
generate_audiobooleanOptionalDefault: trueGenerate synchronized audio. Set false for a silent video.
return_last_framebooleanOptionalDefault: falseAlso return the URL of the last frame, for chaining Seedance 2.0 API clips into longer, multi-shot videos.
image_urlsarrayOptionalDefault: —Up to 9 image URLs or asset:// IDs for Seedance 2.0 API image to video. Cannot be used together with image_with_roles.
image_with_rolesarrayOptionalDefault: —Images with a role: first_frame, last_frame or reference_image (a reference portrait, used with an approved asset:// URL). Reference video and audio are not available with first and last frames.
video_urlsarrayOptionalDefault: —Up to 3 Seedance 2.0 API reference videos, total length between 1.8 and 15.2 seconds, 480p to 720p.
audio_urlsarrayOptionalDefault: —Up to 3 Seedance 2.0 API reference audio clips, 15 seconds in total. Must be used with a reference image or video.
toolsarrayOptionalDefault: —Optional tools. [{"type": "web_search"}] lets the model reference web information during generation.
nsfw_checkbooleanOptionalDefault: falseCheck the prompt and images before submission. Flagged requests return HTTP 400 and no task is created.

Seedance API Model Family

Compare every Seedance video model on APIMart. One API key calls all of them; each model page shows its live pricing.

ModelBest forResolutionDuration
Seedance 2.5 APIClips up to 30 s with up to 50 image, video and audio references, plus video editing and extension480P / 720P / 1080P4–30 s or auto
Seedance 2.0 APIThis pageUp to 4K, the highest resolution in the family, with image, video and audio references480P / 720P / 1080P / 4K4–15 s
Seedance 2.0 Fast APIFast variant of Seedance 2.0 with the same image, video and audio references480P / 720P4–15 s
Seedance 2.0 Mini APIMini variant of Seedance 2.0 with the same image, video and audio references480P / 720P4–15 s
Seedance 1.5 Pro APIText-to-video and first/last-frame image-to-video, with optional audio480P / 720P / 1080P4–12 s
Seedance 1.0 Pro Quality APIText-to-video and first/last-frame image-to-video480P / 720P / 1080P2–12 s
Seedance 1.0 Pro Fast APIText-to-video and first-frame image-to-video (no last frame)480P / 720P / 1080P2–12 s

Guides, comparisons and pricing analysis from the APIMart blog.