Using Gemini 2.5 Flash Lite Preview 09-2025 on Google AI Studio

Implementation guide · Gemini 2.5 · Google DeepMind

Serverless

Quick Start

1
Create an account at Google AI Studio and generate an API key.
2
Use the Google AI Studio SDK or REST API to call gemini-2.5-flash-lite-preview-09-2025 — see the documentation for request format.
3
You'll be billed $0.10/1M input, $0.40/1M output tokens.

API Portal Documentation

Code Examples

Install

pip install google-genai

API key

GOOGLE_API_KEY

Model ID

gemini-2.5-flash-lite-preview-09-2025

Use the model name directly, e.g. "gemini-2.0-flash", "gemini-1.5-pro", or "gemini-2.5-pro-preview-05-06".

import os
from google import genai

client = genai.Client(api_key=os.environ["GOOGLE_API_KEY"])
response = client.models.generate_content(
    model="gemini-2.5-flash-lite-preview-09-2025",
    contents="Hello"
)
print(response.text)

About Google AI Studio

Google AI Studio is a model prototyping environment and API access point for Gemini models, offering an inference playground for developers to test and build AI applications.

View all models on Google AI Studio →

Pricing on Google AI Studio

Type	Price (per 1M)
Input tokens	$0.10
Output tokens	$0.40

Capabilities

VisionMultimodalFunction CallingTool UseStructured OutputsCode Execution

About Gemini 2.5 Flash Lite Preview 09-2025

Google: Gemini 2.5 Flash Lite Preview 09-2025 available via OpenRouter. Pricing: $0.1/1M input, $0.4/1M output.

Full model details →

Model Specs

Released2025-09-01

Context1M

ArchitectureDecoder Only

Knowledge cutoff2025-01