LiteLLMModels

Gemini 2.5 Flash Lite Preview API Pricing

As of October 10, 2026, Gemini 2.5 Flash Lite Preview costs $0.10 per 1M input tokens and $0.40 per 1M output tokens on Google Vertex AI, with cache reads at $0.01 per 1M tokens. It has a 1,048,576-token context window and returns up to 65,535 tokens per response.

By GoogleModel ID vertex_ai/gemini-2.5-flash-lite-preview-09-2025Prices updated Checked
Input
$0.10 / 1M tokens
Output
$0.40 / 1M tokens
Cache read
$0.01 / 1M tokens
Context window
1,048,576 tokens
Max output
65,535 tokens
Providers
1
Added to LiteLLM
October 2025

Gemini 2.5 Flash Lite Preview 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 LiteLLMInputOutputCache readContext
Google Vertex AIsnapshot 09-2025vertex_ai/gemini-2.5-flash-lite-preview-09-2025$0.10$0.40$0.011M

Other Gemini 2.5 Flash Lite Preview prices on Google Vertex AI

Audio input$0.30 per 1M tokens
Web search$35.00 per 1K searches

What Gemini 2.5 Flash Lite Preview costs in practice

1,000 requests with 2,000 input and 500 output tokens each

Google Vertex AI$0.40

100 long-document requests with 100,000 input and 2,000 output tokens each

Google Vertex AI$1.08

Gemini 2.5 Flash Lite Preview features

Input: text, image, audio, video. Output: text.

Use Gemini 2.5 Flash Lite Preview with LiteLLM

Call Gemini 2.5 Flash Lite Preview through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

Python SDK
from litellm import completion

response = completion(
    model="vertex_ai/gemini-2.5-flash-lite-preview-09-2025",
    messages=[{"role": "user", "content": "Hello!"}],
)
Proxy config.yaml
model_list:
  - model_name: gemini-2.5-flash-lite-preview
    litellm_params:
      model: vertex_ai/gemini-2.5-flash-lite-preview-09-2025
      vertex_project: os.environ/VERTEX_PROJECT
      vertex_location: os.environ/VERTEX_LOCATION
Call the proxy
curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "gemini-2.5-flash-lite-preview",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Gemini 2.5 Flash Lite Preview FAQ

How much does Gemini 2.5 Flash Lite Preview cost?

Gemini 2.5 Flash Lite Preview costs $0.10 per 1M input tokens and $0.40 per 1M output tokens on Google Vertex AI, with cache reads at $0.01 per 1M tokens.

What is the context window of Gemini 2.5 Flash Lite Preview?

Gemini 2.5 Flash Lite Preview has a 1,048,576-token context window and returns up to 65,535 tokens per response.

Which providers offer Gemini 2.5 Flash Lite Preview?

Gemini 2.5 Flash Lite Preview is available from Google Vertex AI through LiteLLM, using the model name vertex_ai/gemini-2.5-flash-lite-preview-09-2025.

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

Use the LiteLLM Python SDK with model="vertex_ai/gemini-2.5-flash-lite-preview-09-2025", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

What features does Gemini 2.5 Flash Lite Preview support?

Gemini 2.5 Flash Lite Preview supports function calling, parallel tool calls, structured output, image input, PDF input, reasoning, prompt caching and web search. It does not support audio output.

When did LiteLLM add Gemini 2.5 Flash Lite Preview?

Gemini 2.5 Flash Lite Preview 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: Google Vertex AI.

Provider pages: Google Vertex AI.