Seedance 2.0: Text to Video turns plain-language prompts into cinematic video clips inside ComfyUI. The workflow is built around ByteDance2TextToVideoNode running the Seedance 2.0 model to synthesize a coherent sequence of frames directly from text. You control duration (frame count), playback speed (fps), resolution, and seed, which together determine the look, timing, and repeatability of the output. SaveVideo then encodes the generated frames into a single video file (e.g., MP4/WebM) at your chosen frame rate.
Technically, ByteDance2TextToVideoNode conditions a video diffusion process on your prompt and iteratively produces a temporally consistent stack of images. Fixing the seed and keeping motion cues clear in the prompt helps maintain stable visuals across frames. Describing camera-like behavior in the text (e.g., “slow dolly in,” “static tripod,” “handheld”) guides motion without extra nodes. SaveVideo collects the node’s frame output and writes it to disk; if you need music or sound effects, export your video and sync audio later in a video editor.
API
Use this workflow from code
Every Comfy workflow is a JSON graph. The payload below is this workflow, exactly as ComfyUI runs it — fetch it from the URL, keep it in version control, or load it in ComfyUI and run it node by node.
GET https://comfy.org/workflows/download/b58cf4e5cec5.jsonFetching workflow JSON…
Run it from Python or TypeScript with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
# Install (beta)
pip install comfy-sdk # Python
npm i @comfyorg/sdk # TypeScript
# Run "Seedance 2.0: Text to Video" (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
# This workflow, exported in API format (see note below)
wf = client.workflows.from_file("api_seedance2_0_t2v_api.json")
job = client.run(wf)
for output in job.get_outputs("344"): # SaveVideo
output.to_file(output.name)The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API). API access requires a Comfy Cloud plan with an API key. SDK docs · Get an API key
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