Seed Audio 1.0 Serverless API

Generate full audio scenes: dialogue, music, effects, voice cloning.

~24.51s
POST /v2/seed-audio-1.0 · submit + poll
 1# pip install "segmind>=1.1.0"
 2# export SEGMIND_API_KEY="YOUR_API_KEY"
 3import segmind
 4
 5# Async (v2): submit to the queue and block until COMPLETED.
 6# run() returns the final result dict (600s deadline, 1.0s poll by default).
 7result = segmind.run(
 8    "seed-audio-1.0",
 9    text_prompt="Welcome to Segmind. Today we're exploring how a single AI model can bring words to life with warmth and emotion.",
10    format="mp3",
11    sample_rate=44100,
12)
13print(result["status"])                      # COMPLETED
14print(result.get("output"))                  # model output (e.g. media URL)
15print(result["metrics"]["inference_time"])   # server compute seconds
16
17# --- Or submit + poll manually (track request_id, control the cadence) ---
18from segmind import SegmindClient, InferenceFailed, InferenceTimeout
19
20client = SegmindClient()                      # reads SEGMIND_API_KEY
21payload = {
22    "text_prompt": "Welcome to Segmind. Today we're exploring how a single AI model can bring words to life with warmth and emotion.",
23    "format": "mp3",
24    "sample_rate": 44100,
25}
26job = client.submit_async("seed-audio-1.0", **payload)
27print(job.request_id)                         # available immediately
28try:
29    result = job.wait(timeout=600, interval=1.0)
30except InferenceTimeout as e:
31    print("still running:", e.request_id)
32except InferenceFailed as e:
33    print("failed:", e.detail)

API Endpoint

POSThttps://api.segmind.com/v1/seed-audio-1.0

Parameters

text_promptrequired
string

Describe the audio scene to generate (dialogue, music, SFX, ambience), or provide literal text to synthesize. Up to 2048 characters.

Default: "Welcome to Segmind. Today we're exploring how a single AI model can bring words to life with warmth and emotion."
formatoptional
string
Default: "mp3"
Allowed values :
"wav""mp3""pcm""ogg_opus"
image_urloptional
string (uri)

A single reference image to guide mood and delivery. Cannot be combined with reference audio.

loudness_rateoptional
integer

100 = 2.0x volume, -50 = 0.5x volume.

Default: 0Range: -50 - 100
pitch_rateoptional
integer

Pitch shift in semitones.

Default: 0Range: -12 - 12
reference_audio_urlsoptional
string[]

Up to 3 audio clips for voice-clone or multi-role dialogue. Cite them in Text Prompt as @Audio1, @Audio2, @Audio3.

sample_rateoptional
integer
Default: 44100
Allowed values :
8000 Hz8000
16000 Hz16000
24000 Hz24000
32000 Hz32000
44100 Hz44100
48000 Hz48000
speakeroptional
string

Pick a preset voice for fast single-voice narration, or leave empty to let the prompt drive delivery.

Default: null
Allowed values (16 total):
Stokie (Default)"en_female_stokie_uranus_bigtts"
Bruce"en_male_bruce_uranus_bigtts"
Alex"en_male_alex_uranus_bigtts"
Allison"en_female_allison_uranus_bigtts"
Nadia"en_female_nadia_uranus_bigtts"
Brittney"en_female_brittney_uranus_bigtts"
Authoritative British"en_female_authoritative-british_uranus_bigtts"
David"en_male_david_uranus_bigtts"
Pleasant Female"en_female_pleasant-female_uranus_bigtts"
Michael"en_male_michael_uranus_bigtts"
+6 more
speech_rateoptional
integer

100 = 2.0x speed, -50 = 0.5x speed.

Default: 0Range: -50 - 100

Response Type

Returns: Audio

Asynchronous requests (v2)

Use Async for video, long-running (>~60s), or high-concurrency workloads; Sync is simplest for fast image & LLM calls. Async submits a request and you poll it to completion.

  1. 1
    POST /v2/seed-audio-1.0

    Submitreturns request_id, status_url, response_url

  2. 2
    GET /v2/requests/{id}/status

    Polluntil COMPLETED or FAILED

  3. 3
    GET /v2/requests/{id}

    Resultfinal response body

Status states

QUEUEDAccepted, waiting for a worker
PROCESSINGRunning on a worker
COMPLETEDDone — result body is ready
FAILEDErrored (incl. content/RAI blocks)
  • A FAILED request is served as HTTP 422 — the body still carries the error detail.
  • An unknown or expired request_id returns HTTP 404.
  • Results are retained for 1 hour, then expire.
  • Content / RAI blocks surface as FAILED, not a separate state.
  • Track completion by polling the status endpoint.

Common Error Codes

The API returns standard HTTP status codes. Detailed error messages are provided in the response body.

400

Bad Request

Invalid parameters or request format

401

Unauthorized

Missing or invalid API key

403

Forbidden

Insufficient permissions

404

Not Found

Model or endpoint not found

406

Insufficient Credits

Not enough credits to process request

429

Rate Limited

Too many requests

500

Server Error

Internal server error

502

Bad Gateway

Service temporarily unavailable

504

Timeout

Request timed out