Azure TTS API Pricing

Azure TTS pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What Azure TTS costs in practice

Narrating 500,000 characters

Use Azure TTS with LiteLLM

Call Azure TTS through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/audio/speech. LiteLLM tracks the cost of every request at these prices.

from litellm import speech

response = speech(
    model="azure/speech/azure-tts",
    input="Hello from LiteLLM",
    voice="alloy",
)

model_list:
  - model_name: azure-tts
    litellm_params:
      model: azure/speech/azure-tts
      api_base: os.environ/AZURE_API_BASE
      api_key: os.environ/AZURE_API_KEY

curl http://0.0.0.0:4000/v1/audio/speech \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "azure-tts",
    "input": "Hello from LiteLLM",
    "voice": "alloy"
  }'

Azure TTS FAQ

Related models

• Azure TTS HD$30 per 1M characters