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Gemini 3 Pro

Gemini 3 Pro: Google's Frontier Model

Google's most capable reasoning model for software engineering, agentic work, and understanding text, images, audio, and video - with a 1M-token context.

What is Gemini 3 Pro?

Gemini 3 Pro is the top reasoning model of Google's Gemini 3 generation. The latest version, Gemini 3.1 Pro, arrived in February 2026 with stronger software engineering, more reliable agentic behavior, and more efficient token use on complex workflows.

Like the rest of the Gemini family, it is natively multimodal: it can take text, images, files, audio, and video as input, and its context window reaches about 1 million tokens.

What Gemini 3 Pro can do

Advanced Reasoning
Think through hard problems step by step, from math and science to strategy.
Software Engineering
Write, review, and debug code across large projects.
Agentic Task Execution
Plan multi-step work and use tools reliably across long workflows.
Video and Audio Understanding
Analyze video clips, recordings, and audio alongside text and images.
Long Document Context
Keep about 1M tokens in view - entire codebases or large document sets.
Research and Analysis
Combine many sources into clear, structured answers and reports.

How to use Gemini 3 Pro

Open the chat
Click "Open Chat" to start chatting with Gemini for free.
Describe your task
Ask a question, paste code, or describe the result you need.
Get a reasoned answer
The model works through the problem and replies with a structured answer.
Refine the result
Ask follow-ups or add context to improve the answer.
Use the output
Copy the answer or code into your project.

Frequently Asked Questions

Gemini 3 Pro is the top reasoning model of Google's Gemini 3 generation. Its latest version is Gemini 3.1 Pro, released in February 2026.

It accepts text, images, files, audio, and video as input.

About 1 million tokens.

Pro is Google's most capable reasoning model. Flash is faster and lighter, made for everyday tasks at high speed.

Yes, the Gemini chat on chatai.org is free and requires no registration. There is a daily message limit.

Yes. Software engineering is one of the main areas Google improved in Gemini 3.1 Pro.