Orpheus 3B · Sunbird

Sunbird AI

English, Luganda and Swahili voices.

Pilot betaInvited workspaces · Cape Town, South Africa

Clear usage rates.

Characters≈ UGX 39,950per 1M characters

Introductory pilot rates · UGX

Credit-subsidised introductory pricing per million Unicode characters. Failed or cancelled generation is not billed.

A little head start.

90 days of lower rates.

No platform subscription fee. Pay for your usage, within your approved pilot limits.

How the pilot offer works

Rates apply for 90 days from activation in an approved workspace. Rates and usage limits are confirmed before paid use.

Introductory rates are active for new requests, including existing workspaces. Historical usage keeps its original rates. Billing shows your configured rates; no automatic payments.

We’ll give at least 30 days’ notice of changes after your introductory period. Access is invite-only and subject to scheduled compute capacity. USD is the pricing base; local equivalents are approximate.

Check your workspace’s active rates →

Open in Playground View active workspace rates

Requires an invited account and a key enabled for this model.

What you can build.

Capabilities available in the Embiro pilot.

InputText

OutputAudio

English preset voice
Luganda preset voice
Swahili preset voice

Know the limits.

Text: Up to 300 Unicode characters
Voices: en: salt_eng_0001 · lg: salt_lug_0001 · sw: waxal_swa_0006
Output: WAV; speed 1; queued, non-streaming pilot

Full pilot service notes

English, Luganda and Swahili preset voices; 300 Unicode characters; WAV only; speed 1. Queued, non-streaming pilot; model warm-up can add delay. Credit-subsidised introductory pricing.

Requests share your workspace’s allowance, rate limit and concurrency limit. Compute runs in scheduled sessions; model access does not guarantee immediate capacity.

Make your first request.

Use a server-side workspace API key from Platform → API keys. Examples use https://api.embiro.ai/v1 and the exact pilot model ID.

API model IDorpheus-3b-tts

POST/v1/audio/speech

Orpheus supports en, lg and sw with matching preset voices. Up to 300 characters; speed 1. Use the queued API for warm-up and longer generation.

# Set EMBIRO_API_KEY in your shell first.
: "${EMBIRO_API_KEY:?Set your workspace API key first}"
curl --fail-with-body --silent --show-error "https://api.embiro.ai/v1/audio/speech" \
  -H "Authorization: Bearer $EMBIRO_API_KEY" \
  -H "Content-Type: application/json" \
  --output speech.wav \
  --data-binary @- <<'JSON'
{
  "model": "orpheus-3b-tts",
  "input": "Hello from Embiro Labs. Intelligence, closer to home.",
  "voice": "salt_eng_0001",
  "language": "en",
  "response_format": "wav"
}
JSON

What comes back

A WAV response body. The example saves speech.wav.

Cold starts, errors and safe retries

Use the Queued job example when a request can wait for compute. Save its ID and poll that job.
For 401/403, check the key and its model permissions. For 400, check the request and format limits.
Respect Retry-After on 429/503. A timeout after dispatch can be ambiguous; check request logs before submitting again.
These examples do not automatically retry paid work. A job retry must reuse the saved idempotency key and identical payload.

Open API reference

Under the hood.

Publisher specifications. These do not override the Embiro service limits above.

Published context: Not specified
Parameters: 3B
Model size: Light

Three preset voices. Up to 300 characters; WAV output; queued non-streaming pilot. Warm-up can add delay. Credit-subsidised introductory pricing.

Read the publisher’s model card

No verified benchmark scores are listed in this catalogue for this model.