Seedance 2.0 Now Generates 4K Video

Seedance 2.0 Pro now generates native 4K video on EmpirioLabs. The model already produces multimodal video from text, images, audio, and reference video with synchronized native audio, and 4K (3840x2160) now joins the existing 480p, 720p, and 1080p outputs. It is live today on the same OpenAI-compatible API, with nothing to change beyond one parameter.

Set resolution to 4k on a text-to-video or image-to-video request and the model renders at 3840x2160 for 4 to 15 seconds with audio. Every other capability stays the same: first and last frame control, multimodal reference, video edit, and video extend.

Pricing

Seedance 2.0 is pay-as-you-go, billed per second of video generated, with the per-second rate set by the output resolution. 4K is priced higher per second than 1080p, and requests that include a reference video cost more than text or image only requests. There is no subscription and no minimum, and a request that fails before any video is produced is not billed. The live per-second rates are on the Seedance 2.0 Pro model page and the pricing page, which stay in sync with what you are charged.

Quickstart

The API is OpenAI-compatible. Submit a generation, then poll the returned job until it is ready. Set your key as EMPIRIOLABS_API_KEY and call the videos endpoint with resolution set to 4k:

curl https://api.empiriolabs.ai/v1/videos/generations \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2-0-pro",
    "prompt": "aerial drone shot over a misty mountain valley at sunrise, slow cinematic push-in",
    "resolution": "4k",
    "duration": 5
  }'

The call returns a job_id. Poll GET https://api.empiriolabs.ai/v1/jobs/{job_id} until the status is completed, then read the signed video URL from the result. You can also generate 4K in the playground, and the full spec lives in the API docs.

Image to video and editing in 4K

4K works across the model's modes, not just text to video. Pass an image as the first frame to animate a still in 4K, supply a first and last frame to control the motion between them, or attach a reference video to edit or extend it. Seedance 2.0 does not animate real, recognizable faces from uploads, so to use a character, generate the starting image first (for example with Seedream 5.0 Lite) and pass that as the first frame.

Notes

• 4K renders at 3840x2160 with 10-bit color and is encoded in H.265 (HEVC). Some browsers and players cannot play 4K inline, so download the file to view it if your player does not support HEVC.
• Clips run from 4 to 15 seconds. Set duration for a fixed length, or omit it to let the model choose.
• Native audio is generated by default. Put spoken lines in double quotes in your prompt to steer dialogue.
• 4K is available on Seedance 2.0 Pro. The faster Seedance 2.0 Fast tier renders 480p and 720p.