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Seedance 2.0 API Access

ByteDance hasn't released a public Seedance API. Here's what's actually available: third-party inference APIs, TwoShot's HTTP interface, and the honest tradeoffs of each approach.

Create a 10-second timelapse of a BMW being assembled in a high-tech factory - from raw steel to finished car rolling off the line
Here's your Seedance 2.0 video - BMW assembly timelapse from raw steel to finished car:
Video
10s
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Examples From the TwoShot Pipeline

Videos created via the assistant API - the same model accessible programmatically

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Test 4Video by AaronBverified
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exampleVideo by pro.designer615
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testVideo by TwoShotverified
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testVideo by crushereagleverified
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exampleVideo by nimeshtailor121
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TestVideo by TwoShotverified
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exampleVideo by hitanssanghrajka04
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destroyVideo by crushereagleverified

Seedance 2.0 API Status

There is no official ByteDance Seedance API. Here are the three ways developers can access the model today, with honest tradeoffs for each.

Jianying / CapCut SDKLimited
ByteDance (first-party)

Internal SDK available to select Chinese developers. No public documentation, no REST API, no global access. Requires partnership agreement with ByteDance.

Pros
add_circleFirst-party, lowest latency
add_circleFull model parameters
Cons
remove_circleChina only
remove_circleNo public docs
remove_circlePartnership required
remove_circleChinese language only
fal.ai Inference APIAvailable
fal.ai (third-party)

Third-party inference provider offering Seedance 2.0 via standard REST API. Pay-per-second pricing. Supports text-to-video and image-to-video. Limited audio control compared to native access.

Pros
add_circleStandard REST API
add_circlePay-per-second
add_circleSDKs for Python/JS
Cons
remove_circleThird-party (not ByteDance)
remove_circleLimited audio layer control
remove_circleNo 12-file multimodal input
remove_circlePer-second pricing adds up
TwoShot Creative AssistantAvailable
TwoShot (official partner)

Natural language interface to Seedance 2.0 via HTTP POST. Describe what you want in plain English instead of constructing API payloads. The assistant handles model selection, parameters, and retry logic. Supports all input modalities including 12-file multimodal input.

Pros
add_circleAll Seedance 2.0 features
add_circleNatural language prompts
add_circleMulti-model comparison
add_circleHTTP POST access
add_circleFree credits to start
Cons
remove_circleNot a traditional REST API
remove_circleResponse time includes assistant processing
remove_circleNatural language vs structured params

TwoShot as a Seedance 2.0 Interface

TwoShot is not a traditional API. It's a creative assistant that accepts natural language descriptions and returns finished video. Under the hood, it has direct access to Seedance 2.0 as an official partner - including the full 12-file multimodal input, all four audio layers, and every aspect ratio. The difference is the interface: instead of constructing JSON payloads with resolution, duration, seed, and prompt fields, you describe what you want in plain English.

For developers, the assistant is accessible via HTTP POST. Send a message describing your video, and the system handles model selection, parameter optimization, and delivery. You can also specify "use Seedance 2" explicitly. Multiple sessions can run in parallel for batch workflows. The tradeoff is clear: you lose fine-grained parameter control but gain access to every Seedance 2.0 feature without learning the parameter schema, plus the ability to compare outputs across Veo 3, Kling 3.0, and other models from the same interface.

Feature Comparison

What each access method supports for Seedance 2.0.

Featurefal.aiTwoShotCapCut SDK
Text-to-Videocheck_circlecheck_circlecheck_circle
Image-to-Videocheck_circlecheck_circlecheck_circle
Audio Inputcancelcheck_circlecheck_circle
12-File Multimodal Inputcancelcheck_circlecancel
4-Layer Audio Controlcancelcheck_circlecheck_circle
Multi-Model Comparisoncancelcheck_circlecancel
REST APIcheck_circlecancelcancel
Global Accesscheck_circlecheck_circlecancel
Free Creditscancelcheck_circlecancel
Batch Processingcheck_circlecheck_circlecancel

When a Traditional API Isn't What You Need

If you're building a pipeline that creates 500 product videos from a CSV of descriptions, you need a REST API with structured parameters. fal.ai is the right tool for that job. If you're integrating Seedance into an existing application where users provide structured inputs, a traditional API makes sense.

But most people searching for "Seedance 2 API" actually want something different: the ability to create videos efficiently, iterate on results, and compare across models without the overhead of learning parameter schemas. For creative exploration - where the goal is "make this look right" rather than "set duration to 8 seconds and aspect ratio to 16:9" - a natural language interface is genuinely faster. You describe the change you want ("make it more dramatic" or "switch to vertical format") instead of reconfiguring parameter objects.

TwoShot supports both use cases. For creative work, use the assistant directly in the browser. For programmatic access, use the HTTP POST endpoint to start sessions. For the traditional API path, fal.ai is a solid third-party option. The right choice depends on whether you need structured parameters or creative flexibility.

Frequently Asked Questions

Does Seedance 2 have a public API?

ByteDance has not released a public Seedance 2.0 REST API. The model is accessed through ByteDance's own apps (Jianying in China, eventually CapCut) and through authorized partners. Third-party inference providers like fal.ai offer API access but with limited feature support compared to the full model. TwoShot provides HTTP-based access via its creative assistant endpoint.

How much does the fal.ai Seedance API cost?

fal.ai charges per second of video generated. Pricing varies by resolution and model variant. Check fal.ai/models for current rates. Note that fal.ai provides text-to-video and image-to-video but does not support the full 12-file multimodal input or fine-grained audio layer control that the native Seedance 2.0 model offers.

Can I use Seedance 2 programmatically?

Yes, through two routes. For traditional REST API integration, fal.ai offers Seedance 2.0 endpoints with standard JSON request/response. For natural language integration, TwoShot's assistant can be accessed via HTTP POST to /assistant/start - you send a message describing what you want, and the system handles model selection and parameters. Both approaches support programmatic access; they differ in interface style.

What's the difference between API access and TwoShot?

A traditional API gives you structured parameters (resolution, duration, seed, prompt) and returns a video URL. TwoShot's approach is different: you describe what you want in natural language, and an AI assistant selects the right model, configures parameters, and returns the result. The tradeoff is control vs convenience - APIs give you exact parameter control, TwoShot gives you access to all Seedance 2.0 features (including the 12-file multimodal input) without needing to learn the parameter schema.

Will ByteDance release an official API?

ByteDance has not announced plans for a public Seedance API. Their strategy has been to integrate AI into their own products (Jianying, CapCut, Doubao) rather than offer standalone API services. If an API launches, it would likely be through ByteDance Cloud (Volcano Engine) in China first. For now, third-party providers and partners like TwoShot are the primary access routes.

Can I batch create Seedance 2 videos?

Yes. Through fal.ai, you can make concurrent API calls for batch processing. Through TwoShot, you can start multiple assistant sessions in parallel via HTTP POST - each session independently creates a video. For high-volume batch work, fal.ai's structured API may be more practical. For creative iteration where each video needs different artistic direction, TwoShot's natural language approach saves time on prompt engineering.

Explore Seedance 2.0

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Seedance 2.0 Overview

Full capabilities and model comparison

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Seedance 2 Free

Free credits, no credit card needed

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What is Seedance AI?

History and technology explained

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Seedance 2 vs Veo 3

Head-to-head model comparison

Powerful Creative Tools

Everything you need to create, transform, and perfect your audio, images, and video

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Music Creation

Create original music, beats, and sounds from text descriptions using AI. Any genre, any style.

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Image Creation

Create stunning visuals, album covers, thumbnails, and art from text descriptions. Edit and upscale existing images.

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Create videos from text or images. Animate photos, create music videos, and produce motion content for social media.

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Voice Tools

Text-to-speech, voice enhancement, and vocal transformation.

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Stem Separation

Isolate vocals, drums, bass, and instruments from any track in seconds.

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Enhance & Clean Up

Remove background noise, upscale images, enhance video quality, and polish your media.

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Sound Effects

Generate custom SFX and foley for games, videos, and podcasts.

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Remix tracks in new styles or extend songs seamlessly with AI.

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Writing Tools

Cowrite lyrics and scripts - draft, refine, and iterate together until every line is right.

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Studio

Arrange, compose, and produce directly in your browser. Audio, video, images — all in one workspace.

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Content Library

200,000+ royalty-free sounds and samples ready for commercial use.

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Complete video production with AI. Generate videos, images, music, and voiceovers.

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Studio-quality audio from any recording. Clean up interviews, enhance voices, and add music.

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For Studios & Brands

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Transform your creative ideas into tangible sounds with our AI powered tools. Simply describe what you want - "fast drum & bass jungle-style drum loop" or "layered flutes inspired by nature" - and see the magic unfold.

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Creation

Create stunning visuals from text descriptions. Design album covers, thumbnails, portraits, and art — all through conversation.

Demo Portrait - Woman Dramatic Lighting
Demo Portrait - Woman Dramatic LightingImage by TwoShotverified
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& Video

Create videos from text or images. Animate photos, produce music videos, and make motion content for social media.

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Bring Photos
to Life

Upload any photo and watch it move. AI-powered motion control turns still images into dynamic dance videos and animations.

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Transform
Any Image

Change backgrounds, remove objects, upscale resolution, and edit images through simple conversation. No Photoshop needed.

Demo Portrait - Woman Dramatic Lighting
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Your New
Cowriter

A creative partner for lyrics and scripts. Get a draft, then go back and forth - refine lines, try new angles, iterate together until it's exactly what you envisioned.

New Verse

[Verse 2] City lights blur past my window, neon dreams alive Headphones on, world fades out, feeling so alive Every beat a heartbeat, every drop a sign Lost in the rhythm, yeah this moment's mine Floating through the frequencies, sound waves intertwine Making magic happen, one bar at a time

Build Your Voice

Text-to-speech, voice enhancement, and vocal transformation. Create professional voiceovers in any style or voice.

Deconstruct
Audio

Isolate vocals, drums, bass, and instruments from any track in seconds. Perfect for remixing, sampling, or creating karaoke versions.

Enhance & Clean Up

Remove background noise, upscale images, enhance video quality, and polish your media.

Bespoke
SFX

Generate custom sound effects and foley for games, videos, and podcasts. From explosions to footsteps, create exactly what you need.

Reimagine
Sounds

Leverage the power of our AI to reimagine existing samples. Extract particular elements from a sample, or create a completely new sample based on a reference.

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Ready for
the Studio

Arrange, compose, and produce directly in your browser with our online DAW. Drag and drop samples, add effects, and export your creations.

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