> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Use Seed Audio 1.0 with Comfy Router

> Call byteplus/seed-audio-1.0 through Comfy Router: endpoint, request shape and the response Router returns.

API Reference for `byteplus/seed-audio-1.0`, served by Comfy Router from BytePlus.

## Quick start

Create a key at [platform.comfy.org/profile/api-keys](https://platform.comfy.org/profile/api-keys) and export it as `COMFY_API_KEY`. The Python and TypeScript snippets use the Comfy SDKs (`pip install comfy-sdk`, `npm install @comfyorg/sdk`); the cURL snippet is the same call over raw HTTP.

**Model ID:** `byteplus/seed-audio-1.0`

**Endpoint:** `POST https://api.comfy.org/v2/models/byteplus/seed-audio-1.0`

<CodeGroup>
  ```python Python theme={null}
  from comfy_sdk import Comfy

  # Reads COMFY_API_KEY from the environment. Each call sends a fresh
  # Idempotency-Key and waits up to 10 minutes for the finished result.
  with Comfy() as client:
      result = client.models.run(
          "byteplus/seed-audio-1.0",
          {
              # Request fields are the provider's own — see Input below.
          },
      )

  print(result)
  ```

  ```typescript TypeScript theme={null}
  import { comfy } from "@comfyorg/sdk";

  // Reads COMFY_API_KEY from the environment. Each call sends a fresh
  // Idempotency-Key and waits up to 10 minutes for the finished result.
  const { data } = await comfy.models.run("byteplus/seed-audio-1.0", {
    // Request fields are the provider's own — see Input below.
  });

  console.log(data);
  ```

  ```bash cURL theme={null}
  # Request fields are the provider's own — see Input below.
  curl https://api.comfy.org/v2/models/byteplus/seed-audio-1.0 \
    -H "X-API-Key: $COMFY_API_KEY" \
    -H "Idempotency-Key: $(uuidgen)" \
    -H "Content-Type: application/json" \
    -d '{}'
  ```
</CodeGroup>

## Schema

### Input

<Note>
  Router has not published an authored input schema for this model yet: `GET /v2/models/byteplus/seed-audio-1.0/openapi.json` returns an open object with `x-comfy-input-schema-authored: false`. Router forwards the body to BytePlus unchanged, so [BytePlus's own API reference](https://docs.byteplus.com/) is authoritative for the request fields, and nothing is validated server side.
</Note>

### Output

<ResponseField name="audio" type="string">
  Generated audio data, Base64-encoded.
</ResponseField>

<ResponseField name="code" type="integer">
  Status code. Refer to the official error-code document for details.
</ResponseField>

<ResponseField name="duration" type="number">
  Duration after speed or post-processing, in seconds.

  Format: `double`
</ResponseField>

<ResponseField name="message" type="string">
  Status details.
</ResponseField>

<ResponseField name="original_duration" type="number">
  Original model output duration in seconds. Used for billing and capped at 120 seconds.

  Format: `double`
</ResponseField>

<ResponseField name="subtitle" type="object">
  Subtitle information for the audio. Present only when audio\_config.enable\_subtitle is set to true in the request.
</ResponseField>

<ResponseField name="subtitle.sentences" type="object[]">
  Utterance-level subtitle information.
</ResponseField>

<ResponseField name="subtitle.sentences[].end_time" type="integer">
  Segment end time, in milliseconds from the beginning of the audio.
</ResponseField>

<ResponseField name="subtitle.sentences[].start_time" type="integer">
  Segment start time, in milliseconds from the beginning of the audio.
</ResponseField>

<ResponseField name="subtitle.sentences[].text" type="string">
  The complete text of the segment.
</ResponseField>

<ResponseField name="subtitle.text" type="string">
  Subtitle text corresponding to the audio.
</ResponseField>

<ResponseField name="subtitle.words" type="object[]">
  Word-level subtitle information.
</ResponseField>

<ResponseField name="subtitle.words[].end_time" type="integer">
  Segment end time, in milliseconds from the beginning of the audio.
</ResponseField>

<ResponseField name="subtitle.words[].start_time" type="integer">
  Segment start time, in milliseconds from the beginning of the audio.
</ResponseField>

<ResponseField name="subtitle.words[].text" type="string">
  The complete text of the segment.
</ResponseField>

<ResponseField name="url" type="string">
  Temporary audio URL, valid for 2 hours.
</ResponseField>

## Examples

### Output

```json theme={null}
{
  "audio": "PGJhc2U2ND4=",
  "duration": 1.2,
  "original_duration": 1.2,
  "url": "https://example.invalid/byteplus/seed-audio/generated.wav"
}
```

## Before you ship

The snippets above are the shortest working call. Three things are the same for every model and are documented once on the [Comfy Router headers](/development/comfy-router/headers) page: send an `Idempotency-Key` on every paid call and reuse it when you retry, expect the connection to be held up to Router's 10 minute deadline, and keep `X-Comfy-Request-Id` from every response. The SDKs do all three for you; the cURL tab does none of them. On failure, `X-Comfy-Error-Type` names the bucket, and a `422` means the body failed the model's schema and was never billed.

<CardGroup cols={3}>
  <Card title="Headers" icon="list" href="/development/comfy-router/headers">
    Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.
  </Card>

  <Card title="Quick Start" icon="rocket" href="/development/comfy-router/quickstart">
    Typed error handling in Python and TypeScript, reading the 422, walking the catalog.
  </Card>

  <Card title="Limitations" icon="triangle-exclamation" href="/development/comfy-router/limitations">
    What Router does not do today, and what to use instead.
  </Card>
</CardGroup>