Use Seed Audio 1.0 Multilingual with Comfy Router

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

Use byteplus/seed-audio-1.0-multilingual with the Comfy Router API. BytePlus provides the model; Router gives it the shared authentication and request route below.

Quick start

Create a key at 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-multilingual

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

Python

import uuid
from comfy_sdk import Comfy

# Reads COMFY_API_KEY from the environment. Save this key and reuse it if you
# retry this request after the SDK returns an error.
idempotency_key = str(uuid.uuid4())
with Comfy() as client:
    result = client.models.run(
        "byteplus/seed-audio-1.0-multilingual",
        {
            # Request fields are the provider's own — see Input below.
        },
        idempotency_key=idempotency_key,
    )

print(result)

Schema

Input

Router has not published an authored input schema for this model yet: GET /v2/models/byteplus/seed-audio-1.0-multilingual/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 is authoritative for the request fields, and nothing is validated server side.

Output

audio · string

Generated audio data, Base64-encoded.

code · integer

Status code. Refer to the official error-code document for details.

duration · number

Duration after speed or post-processing, in seconds.

Format: double

message · string

Status details.

original_duration · number

Original model output duration in seconds. Used for billing and capped at 120 seconds.

Format: double

subtitle · object

Subtitle information for the audio. Present only when audio_config.enable_subtitle is set to true in the request.

subtitle.sentences · object[]

Utterance-level subtitle information.

subtitle.sentences[].end_time · integer

Segment end time, in milliseconds from the beginning of the audio.

subtitle.sentences[].start_time · integer

Segment start time, in milliseconds from the beginning of the audio.

subtitle.sentences[].text · string

The complete text of the segment.

subtitle.text · string

Subtitle text corresponding to the audio.

subtitle.words · object[]

Word-level subtitle information.

subtitle.words[].end_time · integer

Segment end time, in milliseconds from the beginning of the audio.

subtitle.words[].start_time · integer

Segment start time, in milliseconds from the beginning of the audio.

subtitle.words[].text · string

The complete text of the segment.

url · string

Temporary audio URL, valid for 2 hours.

Examples

Output

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

Before you ship

Save one Idempotency-Key for each call and reuse it for retries. Router can hold the connection for up to 10 minutes. The SDKs handle authentication; raw HTTP clients send the headers themselves.

Use X-Comfy-Error-Type to classify a failure. A 422 means Router rejected the input before calling the provider. Download generated assets promptly because result URLs can expire.

Headers

Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.

Using the Router API

Find models, inspect schemas, and retry safely.

Limitations

What Router does not do today, and what to use instead.