Deep Research preview

A powerful agentic researcher designed for autonomous, multi-step investigations that synthesize complex information into comprehensive, cited reports. Powered by Gemini 3 Pro, this model is optimized for long-running tasks and accuracy-critical analysis across hundreds of public web sources and private workspace data like Gmail and Drive.

Documentation

Visit the Deep Research page for full coverage of features and capabilities.

deep-research-pro-preview-12-2025

Property Description
Agent code

Interactions API

deep-research-pro-preview-12-2025

Supported data types

Input

Text, Image, PDF, Audio, Video

Output

Text (Cited Reports)

Token limits[*]

Input context window

1,048,576

Output token limit

65,536

Versions
Read the model version patterns for more details.
  • Preview: deep-research-pro-preview-12-2025
Latest update December 2025