This ComfyUI workflow turns a short text idea into finished stereo audio using Stable Audio 3.0 Medium. You type a brief concept (e.g., "warm lo‑fi hip‑hop beat" or "cinematic whoosh impact"), the prompt is expanded for clarity and detail with a Qwen 3.5 2B BF16 text encoder, and the Stable Audio 3 generation node produces a high‑quality stereo clip. The audio is then written to disk by SaveAudioMP3 for easy preview and sharing.
Under the hood, a Subgraph handles prompt expansion and routing so you only need to provide a short input. The core generation is performed by the Stable Audio 3 node (type id 8b66c757-fe2f-4184-91f3-479a19deb565), which loads weights from the Comfy‑Org/stable‑audio‑3 repository and accepts key parameters like duration and seed for control and reproducibility. A MarkdownNote in the graph provides quick in‑UI guidance. The final waveform is passed to SaveAudioMP3, which saves a stereo file to your chosen path. This setup is ideal when you want fast, consistent audio ideation without spending time crafting long prompts.
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/9c3c4722a8e1.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 this workflow (Python)
from comfy_sdk import Comfy
client = Comfy(api_key="comfyui-...")
wf = client.workflows.from_file("workflow_api.json")
job = client.run(wf)
for output in job.get_outputs("<output-node-id>"):
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
FAQ
