Seedance 2.0 API

What is Seedance 2.0 API

Seedance 2.0 API is a service that allows users to generate up to 15-second native 4K videos from text, images, video, and audio inputs with synchronized sound through a single API. It is ByteDance's second-generation, multimodal AI video generator.

How to use Seedance 2.0 API

1. Obtain an API key from an Apiframe account.
2. Store the API key in an environment variable.
3. Send a POST request to the Seedance 2.0 API endpoint (https://api.apiframe.ai/v2/videos/generate).
4. The request should include a prompt, the model ID (seedance-2), and optional parameters within seedanceParams such as resolution, start/end images, and audio generation settings.
5. The API call returns a jobId.
6. Poll the job endpoint (https://api.apiframe.ai/v2/jobs/{jobId}) using the jobId to track the task status.
7. Alternatively, provide a webhook_url in the request, and the video URL will be delivered upon completion.

Features of Seedance 2.0 API

• Multimodal Inputs: Accepts text prompts, reference images, reference videos, and reference audio.
• Video Generation Types: Supports text-to-video, image-to-video, and reference-to-video.
• High Resolution: Generates native 4K (3840×2160, 10-bit) videos.
• Video Duration: Supports clip lengths from 4 to 15 seconds.
• Aspect Ratios: Offers a range of aspect ratios from 21:9 to 9:16.
• Synchronized Audio: Generates native audio, including music, sound effects, beat sync, and lip-sync, synchronized with the video.
• Reference Control: Allows steering audio generation with reference audio.
• Cinematic Output: Can produce multiple shots with natural cuts from a single generation.
• Camera Control: Enables direct description of camera movement, motion, and language in the prompt.
• Character Consistency: Maintains character identity and facial features across shots.
• Video Editing & Extension: Supports modifying clips, replacing elements, or continuing shots.
• Creative Control: Allows setting aspect ratio, video length, and visual style per request.
• Async Jobs & Webhooks: Delivers generated videos through asynchronous jobs and webhooks.
• Simple API Workflow: Uses a single API key for all models.

Use Cases of Seedance 2.0 API

• Ad creative and product videos.
• Music-driven clips with synchronized audio.
• Virtual try-on and e-commerce videos.
• Film and game pre-visualization.

Pricing

The Seedance 2.0 API is priced per second of video output. The cost ranges from 11 to 285 credits per second, approximately $0.11 to $2.85, depending on the resolution and selected options. A longer clip costs proportionally more. Users start with free credits, and volume discounts are available for larger plans.

FAQ

• What is Seedance 2.0? Seedance 2.0 is ByteDance's second-generation, multimodal AI video generator, released in February 2026. It handles text to video, image to video, and reference to video, producing lifelike, edited-feeling results.
• How do I call the Seedance 2.0 API? Get an API key, store it in an environment variable, and send a POST request to the Seedance 2.0 API. The API uses the same key for every model. The generation request returns a video task; poll the task endpoint for status, and the video URL is delivered to your webhook.
• How do reference images and multimodal inputs work? Pass reference images, a reference video, or audio as input URLs in the request body, and tag each with a role. The Seedance 2.0 API blends these inputs so a reference-to-video shot follows your intended framing and pacing.
• What is the difference between text-to-video and image-to-video? Text-to-video starts only from a text prompt, while image-to-video animates a still image as the first frame. For image-to-video generation, you can also supply the first and last frames for frame control.
• Does Seedance 2.0 generate audio? Yes. Seedance 2.0 performs audio-video joint generation, so every generated video ships with synchronized audio (music, sound effects, beat sync, lip-sync). You can provide reference audio to guide audio generation.
• Can it produce multiple shots and cinematic output? A single call can return several shots with natural cuts, giving cinematic output from one generation. This cinematic video generation is why teams reach for the Seedance 2.0 API.
• How do I control the camera and visual style? Describe camera movement, camera motion, and camera language directly in your text prompt, and Seedance 2.0 follows it with cinematic precision. You keep creative control over the look, pacing, and framing.
• Can Seedance 2.0 edit or extend a video? Yes. The Seedance 2.0 API supports video editing and video extension: modify clips, replace elements, or continue a shot from its last frame without rebuilding the finished video.
• How consistent are characters and faces? Seedance 2.0 maintains strong character consistency, holding character identity and facial features across shots, resulting in consistent characters and realistic faces, useful for ads and product videos.
• What video duration, aspect ratio, and resolution are supported? The Seedance 2.0 API supports video duration from 4 to 15 seconds at up to native 4K (3840×2160, 10-bit), across aspect ratios from 21:9 to 9:16. You can set the aspect ratio, resolution, and video length per request.
• How do I get an API key and free credits? Create an Apiframe account to get an API key and free credits, then call the Seedance 2.0 API. New users start with free credits to test before adding billing.
• How do I track a video task and its status? Each call returns a job. Poll the task endpoint with the task ID and your user ID to read task status; the output video URL is returned when the task completes.
• How is the Seedance 2.0 API priced? The Seedance 2.0 API is billed per second of video output. Resolution affects the per-second rate, and you can estimate any job before sending the request.
• How does Seedance 2.0 compare to other models? Compared to other AI video generator tools, Seedance 2.0 leads in physical realism, consistent characters, and motion stability while generating audio in the same pass. It can replace several separate tools in a typical pipeline.
• Where can you access it? You can access Seedance 2.0 through the Apiframe API, as well as ByteDance's CapCut and Dreamina apps. Apiframe provides a single Seedance AI API and key alongside other models.