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About Seedance 2.1 API
What is Seedance 2.1 API?
Seedance 2.1 API is a cinematic AI video generation API by ByteDance, designed for creators, directors, and developers who need high-quality, multi-modal video generation from text, image, video, and audio inputs. It supports up to 9 images, 3 video clips, and 3 audio files in a single request, with native audio-visual generation, multi-shot storytelling, and director-level camera control. The API is billed per second of output, with transparent pricing across resolutions from 480p to 4K SR.
What problem does it solve?
Traditional AI video tools often require cumbersome workflows, generate inconsistent characters, and lack precise camera control. Seedance 2.1 API solves these issues by offering persistent character consistency, physics-based world modeling, and multi-shot continuity—all in a single pass. It also eliminates the need for separate post-production audio, saving time and effort for high-volume content creators.
Who is it for?
Seedance 2.1 API is ideal for filmmakers, video editors, marketing teams, and developers building video generation features into their products. If you need production-ready visuals with synchronized audio, or want to scale video creation without GPU setup, this API is built for you. It may not suit hobbyists seeking a simple consumer app—it's designed for professional and commercial use.
Real use cases
Use cases include creating cinematic product demos, generating dynamic social media clips, producing short films with consistent characters, and adding AI-generated video to apps via REST API or Python/Node SDKs. With 10× faster generation (Seedance 2.1 comes soon), it's also suited for batch processing and real-time content pipelines.
Key features
- Quad-Modal Input — Combine text, image, video, and audio in one request, with up to 9 images, 3 video clips, and 3 audio files.
- Native Audio-Visual Generation — Generate synchronized video and audio in a single pass, no separate post-production.
- Multi-Shot Cinematic Storytelling — Direct full multi-shot sequences with tracking shots, aerial views, and POV angles, all stitched into one coherent scene.
- Director-Level Camera Control — Precision control over Pan, Tilt, Zoom, Roll, and Dolly Zoom for filmmaking accuracy.
- Persistent Character Consistency — Upload a single reference photo and maintain facial features, clothing, and style throughout the video.
- Fast Generation — Up to 10× faster generation (Seedance 2.1) with no queue and unlimited concurrency.
SaaSpartout Score
7.8
/10
Editorial score from our review methodology — not user ratings.
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Seedance 2.1 API Pricing
Seedance 2.1 API pricing: from $0.09/sec.
Free Credits on Sign-up
Get free credits on sign-up, no credit card required. Ideal for testing the API.
Seedance 2.0 (Standard)
$0.112/sec at Atlas Cloud — text, image, video & audio input; up to 9 images + 3 video/audio clips; 4–60s output; 720p to 4K SR resolution; native audio; lip sync; physics modeling; character consistency; camera control; multi-shot.
Seedance 2.0 Fast (Best Value)
$0.09/sec at Atlas Cloud — same quality as 2.0, but 3× faster generation and 20% lower cost, ideal for high-volume workflows.
Seedance 2.1 (Next Gen)
Coming soon, TBA — quad-modal input, native 4K, 360° character consistency, 10× faster generation, director-level control. Early access waitlist available.
All prices are Atlas Cloud estimates; actual billing may vary. Audio generation is included at no extra cost.
Frequently asked questions
How much does Seedance 2.1 API cost?
Seedance 2.1 API is billed per second of output. For Seedance 2.0, it's approximately $0.112/sec at 720p, while Seedance 2.0 Fast is $0.09/sec. Resolution pricing ranges from ~$0.048/s (480p) to ~$0.224/s (4K SR). Free credits are available on sign-up.
Is there a free trial or free plan for Seedance 2.1 API?
Yes, you get free credits on sign-up without needing a credit card. This allows you to generate your first videos for free to test the API.
What is Seedance 2.1 API?
Seedance 2.1 API is an AI video generation API by ByteDance that takes text, image, video, and audio inputs to produce cinematic video clips with synchronized audio, multi-shot storytelling, and director-level camera control.
Who is Seedance 2.1 API best for?
It's designed for creators, directors, and developers who need high-quality, production-ready AI video generation with multi-modal inputs, character consistency, and fast rendering. It's not for casual users—it's a developer-focused API.
What are the top alternatives to Seedance 2.1 API?
Alternatives include Kling v3, Vidu, Wan2.7, and other AI video generation APIs. Seedance 2.1 stands out for its quad-modal input and 360° character consistency, but alternatives may offer different pricing or features.
What is the main limitation of Seedance 2.1 API?
Seedance 2.1 is coming soon and pricing is TBA. Also, the API is billed per second, which can get expensive for long videos at high resolutions. However, failed or errored generations are not charged.
