Gemini 2.5 Pro

Definition

Gemini 2.5 Pro is Google DeepMind's advanced multimodal large language model, released in 2025, combining strong general reasoning with built-in step-by-step 'thinking' and a very large context window.

Overview

Gemini 2.5 Pro is part of Google's Gemini family and was among the first Gemini models to build extended internal reasoning directly into its default behavior, in the spirit of OpenAI's o1/o3 reasoning models, rather than offering it only as a separate mode. It is designed to natively handle text, images, audio, and video as input, reflecting Gemini's emphasis on multimodality from the ground up. A distinguishing feature of Gemini 2.5 Pro is its very large context window, which allows it to process extremely long documents, entire codebases, or hours of audio/video transcripts in a single request — a capability Google has continued to emphasize across the Gemini line since its earliest releases. Gemini 2.5 Pro performed strongly on coding, math, and science benchmarks at release, competing directly with contemporaries such as GPT-5 and Claude Opus. Gemini 2.5 Pro is accessible through the Gemini app, Google AI Studio, and Google Cloud's Vertex AI, and it integrates tightly with other Google products and the broader Google Workspace ecosystem.

Key Features

• Built-in extended reasoning ('thinking') mode by default
• Natively multimodal: text, images, audio, and video input
• Very large context window for long documents and codebases
• Strong performance on coding, math, and science benchmarks
• Deep integration with Google Workspace and Cloud products
• Accessible via the Gemini app, Google AI Studio, and Vertex AI

Use Cases

Frequently Asked Questions

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