LiteLLMModels

Chirp API Pricing

As of October 10, 2026, Chirp costs $30.00 per 1M characters on Google Vertex AI.

By GoogleModel ID vertex_ai/chirpPrices updated Checked
Per 1M characters
$30.00
Providers
1
Added to LiteLLM
December 2025

Chirp 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
Google Vertex AIvertex_ai/chirp$30.00–

What Chirp costs in practice

Narrating 500,000 characters

Google Vertex AI$15.00

Use Chirp with LiteLLM

Call Chirp 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="vertex_ai/chirp",
    input="Hello from LiteLLM",
    voice="alloy",
)
Proxy config.yaml
model_list:
  - model_name: chirp
    litellm_params:
      model: vertex_ai/chirp
      vertex_project: os.environ/VERTEX_PROJECT
      vertex_location: os.environ/VERTEX_LOCATION
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": "chirp",
    "input": "Hello from LiteLLM",
    "voice": "alloy"
  }'

Chirp FAQ

How much does Chirp cost?

Chirp costs $30.00 per 1M characters on Google Vertex AI.

Which providers offer Chirp?

Chirp is available from Google Vertex AI through LiteLLM, using the model name vertex_ai/chirp.

How do I call Chirp with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="vertex_ai/chirp", 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 Chirp?

Chirp was added to LiteLLM's model price file in December 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: Google Vertex AI.

Provider pages: Google Vertex AI.