Gemini 2.5 Flash Preview 09-2025

gemini-2.5-flash-preview-09-2025
byGoogle|Created Sep 26, 2025
Chat Completions

Gemini 2.5 Flash Preview September 2025 Checkpoint is Google’s high-performance model, built for advanced reasoning, code generation, mathematical tasks, and scientific applications. This version introduces faster, more efficient output and smarter tool use for complex, multi-step workflows.

Pricing

Pay-as-you-go rates for this model. More details can be found here.

Input Tokens (1M)

$0.15

Output Tokens (1M)

$1.25

Capabilities

Input Modalities

Text
Image
File
Audio

Output Modalities

Text

Supported Parameters

Available parameters for API requests

Max Completion Tokens
Reasoning Effort
Response Format
Stop
Temperature
Tool Choice
Tools
Top P
Web Search Options

Usage Analytics

Token usage across the last 30 active days

Uptime

Reliability over the last 7 days

Throughput

Time-To-First-Token (TTFT)

Code Example

Example code for using this model through our API with Python (OpenAI SDK) or cURL. Replace placeholders with your API key and model ID.

Basic request example. Ensure API key permissions. For more details, see our documentation.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.naga.ac/v1",
    api_key="YOUR_API_KEY",
)

resp = client.chat.completions.create(
    model="gemini-2.5-flash-preview-09-2025",
    messages=[
        {{"role": "user", "content": "What's 2+2?"}}
    ],
    temperature=0.2,
)
print(resp.choices[0].message.content)