Gemini 3.1 Pro Preview

Google chatvisionvideoaudioreasoningtool_use Long

API ID: google/gemini-3.1-pro-preview-20260219

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About Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is a general-purpose model from Google with ultra-long context (1.0M), suitable for conversations, content creation, and general AI tasks.

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Price Ranking
#1 lowest price among 950 Chat models — Top 20% cheapest!

Model Specifications

Context Length
1.0M
Max Output
66k
Release Date
2026-02-19
Capabilities
chat vision video audio reasoning tool_use
Input Modalities
audiofileimagetextvideo
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Image analysis, document understanding, visual Q&A
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Simple Q&A (cheaper models available)

Google Model Lineup

Compare all models from Google to find the best fit

Model Input Output Context Capabilities
Gemini 3.1 Pro Preview Current Free Free 1.0M chat vision video audio reasoning tool_use
Gemma 3n 4B Free Free 33k chat tool_use
Gemini 2.5 Flash Image Preview (Nano Banana) Free Free 33k chat vision image_gen
Gemma 3n 2B (free) Free Free 8k chat tool_use
Gemma 1 2B Free Free 8k chat
Gemma 1 2B Free Free 8k chat
View All Google Models →

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Cross Brand

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🚀 Quick Start

Get started with Gemini 3.1 Pro Preview API

Google AI Python SDK 
import google.generativeai as genai

genai.configure(api_key="YOUR_API_KEY")
model = genai.GenerativeModel("gemini-3.1-pro-preview-20260219")

response = model.generate_content("Hello!")
print(response.text)

Resources

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