LiteLLMModels

Gemini 2.5 Flash TTS API Pricing

As of October 10, 2026, Gemini 2.5 Flash TTS costs $10.00 per 1M tokens on Google Vertex AI.

By GoogleModel ID vertex_ai/gemini-2.5-flash-ttsPrices updated Checked
Input
$0.50 / 1M tokens
Output
$10.00 / 1M tokens
Providers
1
Added to LiteLLM
September 24, 2026

Gemini 2.5 Flash 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.

ProviderModel name in LiteLLMInputOutputBatch inContext
Google Vertex AIvertex_ai/gemini-2.5-flash-tts$0.50$10.00$0.25–

Other Gemini 2.5 Flash TTS prices on Google Vertex AI

Audio output$10.00 per 1M tokens

Use Gemini 2.5 Flash TTS with LiteLLM

Call Gemini 2.5 Flash 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.

Python SDK
from litellm import speech

response = speech(
    model="vertex_ai/gemini-2.5-flash-tts",
    input="Hello from LiteLLM",
    voice="alloy",
)
Proxy config.yaml
model_list:
  - model_name: gemini-2.5-flash-tts
    litellm_params:
      model: vertex_ai/gemini-2.5-flash-tts
      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": "gemini-2.5-flash-tts",
    "input": "Hello from LiteLLM",
    "voice": "alloy"
  }'

Gemini 2.5 Flash TTS FAQ

How much does Gemini 2.5 Flash TTS cost?

Gemini 2.5 Flash TTS costs $10.00 per 1M tokens on Google Vertex AI.

Which providers offer Gemini 2.5 Flash TTS?

Gemini 2.5 Flash TTS is available from Google Vertex AI through LiteLLM, using the model name vertex_ai/gemini-2.5-flash-tts.

How do I call Gemini 2.5 Flash TTS with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="vertex_ai/gemini-2.5-flash-tts", 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 Gemini 2.5 Flash TTS?

Gemini 2.5 Flash TTS was added to LiteLLM's model price file on September 24, 2026.

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.