3B Orpheus TTS (0.1) Serverless API

Orpheus TTS is an open-source text-to-speech (TTS) system powered by the Llama 3B language model, designed for high-quality and customizable speech synthesis.

POST /v2/orpheus-3b-0.1 · 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    "orpheus-3b-0.1",
 9    text="Today has been... exhausting. <sigh> First, I missed the bus. Then it started pouring rain—of course, I forgot my umbrella. <groan> And just when I thought things couldn’t get worse, I spilled coffee all over my white shirt right before the presentation. <cough> But hey, at least I survived... kind of.",
10    top_p=0.95,
11    voice="dan",
12    temperature=0.6,
13    max_new_tokens=1200,
14    repetition_penalty=1.1,
15)
16print(result["status"])                      # COMPLETED
17print(result.get("output"))                  # model output (e.g. media URL)
18print(result["metrics"]["inference_time"])   # server compute seconds
19
20# --- Or submit + poll manually (track request_id, control the cadence) ---
21from segmind import SegmindClient, InferenceFailed, InferenceTimeout
22
23client = SegmindClient()                      # reads SEGMIND_API_KEY
24payload = {
25    "text": "Today has been... exhausting. <sigh> First, I missed the bus. Then it started pouring rain—of course, I forgot my umbrella. <groan> And just when I thought things couldn’t get worse, I spilled coffee all over my white shirt right before the presentation. <cough> But hey, at least I survived... kind of.",
26    "top_p": 0.95,
27    "voice": "dan",
28    "temperature": 0.6,
29    "max_new_tokens": 1200,
30    "repetition_penalty": 1.1,
31}
32job = client.submit_async("orpheus-3b-0.1", **payload)
33print(job.request_id)                         # available immediately
34try:
35    result = job.wait(timeout=600, interval=1.0)
36except InferenceTimeout as e:
37    print("still running:", e.request_id)
38except InferenceFailed as e:
39    print("failed:", e.detail)

API Endpoint

POSThttps://api.segmind.com/v1/orpheus-3b-0.1

Parameters

textrequired
string

Input text to the model to convert to speech

max_new_tokensoptional
integer

Maximum number of tokens to generate

Default: 1200Range: 100 - 2000
repetition_penaltyoptional
number

Repetition penalty

Default: 1.1Range: 1 - 2
temperatureoptional
number

Temperature for generation. Controls expressiveness: 0.1–0.5 for stable speech, 0.6–1.0 for natural tone, 1.1–1.5 for expressive or dramatic voices.

Default: 0.6Range: 0.1 - 1.5
top_poptional
number

Top P for nucleus sampling. Recommended top-p: 0.2–0.4 for neutral tone, 0.6–0.8 for conversational, 0.8–1.0 for expressive, and 0.3–0.5 for assistants.

Default: 0.95Range: 0.1 - 1
voiceoptional
string

An enumeration.

Default: "dan"
Allowed values :
"tara""dan""josh""emma"

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/orpheus-3b-0.1

    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