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.
Run it from TypeScript or Python with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
// Install (beta)
npm i @comfyorg/sdk
// Run this workflow (TypeScript)
import { Comfy } from "@comfyorg/sdk";
const client = new Comfy({ apiKey: "comfyui-..." });
const wf = await client.workflows.fromFile("workflow_api.json");
const job = await client.run(wf);
await job.getOutputs("<output-node-id>")[0].toFile("output.png");The SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API).
Comfy Cloud API access requires a plan with an API key.
FAQ
