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Google: Gemini 2.5 Flash Preview Sep 2025

Google
Vision Tools Streaming
1M
Context
$1.00
Input /1M
$2.00
Output /1M
8K
Max Output
Run API Call Open in Chat

Google: Gemini 2.5 Flash Preview Sep 2025

Model Overview

Property Value
Model ID google/gemini-2.5-flash-preview-09-2025
Name Gemini 2.5 Flash Preview Sep 2025
Provider Google
Released September 2025

Description

A September 2025 preview of Gemini 2.5 Flash with the latest capabilities and improvements before stable release. This model supports multimodal capabilities including vision and image understanding.

Specifications

Spec Value
Context Window 1,048,576 tokens
Max Completion 8,192 tokens
Modalities Text, Image, Audio, Video

Pricing

Type Price
Input $1.00 per 1M tokens
Output $2.00 per 1M tokens

Capabilities

  • Vision: Yes
  • Tool Use: Yes
  • Streaming: Yes
  • Multimodal: Yes

Integration with LangMart

Gateway Support: Type 2 (Cloud), Type 3 (Self-hosted)

API Usage:

curl -X POST https://api.langmart.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-2.5-flash-preview-09-2025",
    "messages": [{"role": "user", "content": "Analyze this"}],
    "max_tokens": 4096
  }'
  • google/gemini-2.5-flash - Stable version
  • google/gemini-2.5-flash-preview-05-20 - May preview

Last Updated: December 28, 2025