Video

Seedance 2.5

Seedance 2.5 API exposes ByteDance's next-generation audio-video foundation model for production AI video with native 30-second single-pass clips, up to 50 multimodal references, first/last-frame control, region-level edits, and stronger continuity for ads, e-commerce, and film previs.

AI Video30s ClipsMultimodal ReferenceNative Audio

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Service Highlights

Official Discounts
Pay-as-you-go
Fast & Low Latency

Input

Model

Draft mode

Generate a 480p draft first, then create a 1080p final video when you are happy with it. Each generation is billed separately.

Reference Task Type

Explicit types validate task constraints before creation. The prompt must still match the selected type or TaskTypeMismatch may fail asynchronously.

Prompt

Duration

Auto

Aspect Ratio

Resolution

Output Format

Seed

Reference Image

Asset URL0/30

Image with Roles

First Frame

Last Frame

Reference Image

Asset URL0/2

Asset URL0/30

First/last frame tasks require Adaptive. When video or audio references are present, frame roles are treated as reference images.

Reference Video

Asset URL0/10

Reference Audio

Upload reference audio

WAV, MP3 (max 15MB, up to 10 audios, duration ≤ 30s)

Audio URL0/10

Output

Video link valid for 72 hours

Seedance 2.5 API Pricing

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

Estimated Price

Variant	Tier	GoldCurrent price	Platinum	Diamond	Official	Your savings
`seedance-2.5`	480P-input	0.576Credits(~$0.0576)/secWith reference video: (reference duration + generation duration) × current price	0.5472Credits(~$0.0547)/sec	0.5184Credits(~$0.0518)/sec	0.72Credits(~$0.072)/sec	20%
	480P	0.9608Credits(~$0.0961)/sec	0.9128Credits(~$0.0913)/sec	0.8647Credits(~$0.0865)/sec	1.201Credits(~$0.1201)/sec	20%
	720P-input	1.296Credits(~$0.1296)/secWith reference video: (reference duration + generation duration) × current price	1.2312Credits(~$0.1231)/sec	1.1664Credits(~$0.1166)/sec	1.62Credits(~$0.162)/sec	20%
	720P	2.16Credits(~$0.216)/sec	2.052Credits(~$0.2052)/sec	1.944Credits(~$0.1944)/sec	2.7Credits(~$0.27)/sec	20%
	1080P-input	2.2992Credits(~$0.2299)/secWith reference video: (reference duration + generation duration) × current price	2.1842Credits(~$0.2184)/sec	2.0693Credits(~$0.2069)/sec	2.874Credits(~$0.2874)/sec	20%
	1080P	3.8488Credits(~$0.3849)/sec	3.6564Credits(~$0.3656)/sec	3.4639Credits(~$0.3464)/sec	4.811Credits(~$0.4811)/sec	20%

Token Pricing

Variant	Tier	GoldCurrent price	Platinum	Diamond	Official	Your savings
`seedance-2.5`	`token-input`480p / 720p · With reference video	60Credits/1M tokens~$6/1M tokens	57Credits/1M tokens~$5.7/1M tokens	54Credits/1M tokens~$5.4/1M tokens	75Credits/1M tokens~$7.5/1M tokens	20%
	`token`480p / 720p · Without reference video	100Credits/1M tokens~$10/1M tokens	95Credits/1M tokens~$9.5/1M tokens	90Credits/1M tokens~$9/1M tokens	125Credits/1M tokens~$12.5/1M tokens	20%
	`token-1080P-input`1080p · With reference video	65.68Credits/1M tokens~$6.568/1M tokens	62.396Credits/1M tokens~$6.2396/1M tokens	59.112Credits/1M tokens~$5.9112/1M tokens	82.1Credits/1M tokens~$8.21/1M tokens	20%
	`token-1080P`1080p · Without reference video	110Credits/1M tokens~$11/1M tokens	104.5Credits/1M tokens~$10.45/1M tokens	99Credits/1M tokens~$9.9/1M tokens	137.5Credits/1M tokens~$13.75/1M tokens	20%

* Actual costs are subject to final output.

* Without a reference video: generation duration × output price. With one: (reference duration + generation duration) × input price.

* Resolution rates are precharge estimates; Auto reserves 30 output seconds. Successful tasks are reconciled using actual token usage.

Seedance 2.5 API — Native 30s AI Video

Create longer single-pass clips with rich multimodal reference control, native audio, and production video workflows through the Seedance 2.5 API on APIMart.

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Active Users

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What Makes the Seedance 2.5 API Different

Powerful ByteDance capabilities for longer, more controllable AI video production

Seedance 2.5 API: Native 30-Second Clips

The Seedance 2.5 API generates clips up to 30 seconds in one pass, helping preserve motion and identity continuity.

Seedance 2.5 API: Multimodal References

Use the Seedance 2.5 API with image, video, and audio references to preserve characters, products, brand style, and scenes.

Seedance 2.5 API: Video Workflows

The Seedance 2.5 API supports text-to-video, image-to-video, and reference-guided workflows for ads, narratives, and product stories.

Seedance 2.5 API: First-Last Frame Control

Use the Seedance 2.5 API with start and end images to guide camera and subject movement between keyframes.

Seedance 2.5 API: Native Audio and Lip Sync

As an audio-video foundation model, Seedance 2.5 supports synchronized sound and dialogue-driven clips without a fully separate audio generation stage.

Seedance 2.5 API: Region-Level Editing

The Seedance 2.5 API can revise local details while preserving surrounding motion and lighting.

Seedance 2.5 API: 3D Camera Blockout

The Seedance 2.5 API supports 3D blockouts for planning camera positions and spatial blocking before rendering.

Seedance 2.5 API: Production Continuity

The Seedance 2.5 API combines longer clips and dense references to preserve continuity across ads, demos, and short narratives.

Seedance 2.5 API Workflows

Production scenarios for Seedance 2.5 API video generation on APIMart

Seedance 2.5 API: Social Ads

Generate 15–30 second Seedance 2.5 API campaign variants with locked product identity, brand style, and native audio for multi-channel ad testing.

Seedance 2.5 API: E-commerce Videos

Use Seedance 2.5 API multimodal references to keep packaging, color, and product detail consistent across lifestyle shots and close-up product demos.

Seedance 2.5 API: Film Previs

Turn scripts, keyframes, and 3D white-model blockouts into longer Seedance 2.5 API previs clips for camera planning and narrative pacing.

Seedance 2.5 API: Continuations

Feed prior frames, clips, and audio references so Seedance 2.5 API can extend or restyle sequences with stronger subject continuity across multi-shot work.

Seedance 2.5 API: Education Clips

The Seedance 2.5 API turns multi-step concepts into a single narrated clip with clearer scene structure.

Seedance 2.5 API: Brand Films

Produce polished short-form brand films and internal communications with controlled motion, lighting, and identity consistency.

Get Started with the Seedance 2.5 API

Start your AI video journey with the Seedance 2.5 API in just a few steps

Get API Key

→

Configure Parameters

Test Seedance prompts and settings in the Playground to find your creative style.

→

Integrate into Your App

Follow our API documentation to seamlessly integrate Seedance 2.5 API into your products.

Start Creating

User Reviews for Seedance 2.5 API

Example experiences from creator and developer workflows using Seedance 2.5 API

“The visual quality of Seedance 2.5 is incredible! The motion is so smooth and natural, it really elevates my content.”

Sarah Kim

Content Creator

“As a developer, I appreciate the clean API and fast response times. Seedance 2.5 integrates seamlessly into our pipeline.”

Alex Wang

Full-Stack Engineer

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.

Model	Best for	Resolution	Duration
Seedance 2.5 APIThis page	Clips up to 30 s with up to 50 image, video and audio references, plus video editing and extension	480P / 720P / 1080P	4–30 s or auto
Seedance 2.0 API	Up to 4K, the highest resolution in the family, with image, video and audio references	480P / 720P / 1080P / 4K	4–15 s
Seedance 2.0 Fast API	Fast variant of Seedance 2.0 with the same image, video and audio references	480P / 720P	4–15 s
Seedance 2.0 Mini API	Mini variant of Seedance 2.0 with the same image, video and audio references	480P / 720P	4–15 s
Seedance 1.5 Pro API	Text-to-video and first/last-frame image-to-video, with optional audio	480P / 720P / 1080P	4–12 s
Seedance 1.0 Pro Quality API	Text-to-video and first/last-frame image-to-video	480P / 720P / 1080P	2–12 s
Seedance 1.0 Pro Fast API	Text-to-video and first-frame image-to-video (no last frame)	480P / 720P / 1080P	2–12 s

Seedance 2.5 API Frequently Asked Questions

Answers about Seedance 2.5 API capabilities, workflows, and usage

What is the Seedance 2.5 API?

The Seedance 2.5 API refers to programmatic access to ByteDance's audio-video model for text, image, and reference-guided AI video generation with production controls. Seedance 2.5 expands earlier Seedance workflows for longer clips and tighter Seedance subject control.

Seedance 2.5 vs Seedance 2.0: what's new?

Seedance 2.5 extends earlier Seedance models such as Seedance 2.0 toward longer clips and tighter subject control. The Seedance 2.5 API offers native single-pass clips up to about 30 seconds, up to about 50 multimodal references across images, video, and audio, region-level edits, and 3D camera blockouts for production continuity. Both models are available on APIMart with the same API key.

How long can a Seedance 2.5 API video be?

Seedance 2.5 API supports native single-pass clips up to about 30 seconds, reducing the need to stitch multiple short generations for short-form production.

How many references does Seedance 2.5 API support?

Seedance 2.5 API supports up to about 50 multimodal inputs spanning images, video, and audio.

Which workflows does Seedance 2.5 API support?

Supported workflows include text-to-video, image-to-video with first/last-frame control, and reference-guided generation for product consistency, brand style, and multi-shot storytelling.

Does Seedance 2.5 API generate video with audio?

Seedance 2.5 API supports synchronized sound and dialogue-driven clips as an audio-video foundation model.

How does Seedance 2.5 API work on APIMart?

Seedance 2.5 API follows an asynchronous job flow: submit a generation request, receive a task ID, then poll or use webhooks before downloading the result.

Where can I find the Seedance 2.5 API docs?

Full request parameters and code examples for Seedance 2.5 video generation are in the APIMart docs (docs.apimart.ai). Authenticate with your APIMart API key, submit a generation request, and use the returned task ID to poll for the result (or receive it via webhook) before downloading the video.

Seedance price: how much does the Seedance 2.5 API cost?

The ByteDance Seedance 2.5 API is settled by actual token usage. The per-resolution rates in this page's pricing table are precharge estimates, and successful tasks are reconciled against the tokens actually used. The table lists every specification at Gold member prices (20% off); Platinum and Diamond members save more, up to 28%. You only pay for successful requests.

How do I get a Seedance 2.5 API key?

Sign up for APIMart, open the API Keys page in your dashboard and create a new key. The same key calls the ByteDance Seedance 2.5 API and every other model on the platform, with pay-as-you-go billing and no subscription.

Is the Seedance 2.5 API free?

No. There is no free quota for the Seedance 2.5 API on APIMart. Billing is pay-as-you-go and you only pay for successful requests. Members save 20%–28%: Gold members get 20% off, and Platinum and Diamond members up to 28%. See this page's live pricing table for current prices.

How can I contact support for help?

You can reach us via the live chat in the bottom-right corner, email us at [email protected], or join our Discord community. Our team will get back to you as soon as possible.

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