LiteLLMModels

Azure TTS HD API Pricing

As of October 10, 2026, Azure TTS HD costs $30.00 per 1M characters on Azure OpenAI.

Model ID azure/speech/azure-tts-hdPrices updated Checked
Per 1M characters
$30.00
Providers
1
Added to LiteLLM
October 2025

Azure TTS HD 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.

ProviderModel name in LiteLLMPer 1M charsContext
Azure OpenAIazure/speech/azure-tts-hd$30.00–

What Azure TTS HD costs in practice

Narrating 500,000 characters

Azure OpenAI$15.00

Use Azure TTS HD with LiteLLM

Call Azure TTS HD 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.

Python SDK
from litellm import speech

response = speech(
    model="azure/speech/azure-tts-hd",
    input="Hello from LiteLLM",
    voice="alloy",
)
Proxy config.yaml
model_list:
  - model_name: azure-tts-hd
    litellm_params:
      model: azure/speech/azure-tts-hd
      api_base: os.environ/AZURE_API_BASE
      api_key: os.environ/AZURE_API_KEY
Call the proxy
curl http://0.0.0.0:4000/v1/audio/speech \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "azure-tts-hd",
    "input": "Hello from LiteLLM",
    "voice": "alloy"
  }'

Azure TTS HD FAQ

How much does Azure TTS HD cost?

Azure TTS HD costs $30.00 per 1M characters on Azure OpenAI.

Which providers offer Azure TTS HD?

Azure TTS HD is available from Azure OpenAI through LiteLLM, using the model name azure/speech/azure-tts-hd.

How do I call Azure TTS HD with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="azure/speech/azure-tts-hd", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/audio/speech from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

When did LiteLLM add Azure TTS HD?

Azure TTS HD was added to LiteLLM's model price file in October 2025.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: Azure OpenAI.

Provider pages: Azure OpenAI.