Google Gemini

Overview

Google Gemini 2.5 models, including Gemini 2.5 Pro and Gemini 2.5 Flash, support a 1 million token context window.

Key Features

The 1 million token context window is a standard feature for these models, with some enterprise configurations scaling up to 2 million tokens.

Technical Specifications

Technical reports for the preceding Gemini 1.5 Pro model demonstrated over 99% retrieval accuracy on contexts up to 1 million tokens.

How It Works

For the specific use case of full codebase analysis, the 1 million token window allows the model to ingest an entire repository at once.

Use Cases

This facilitates tasks such as identifying architectural flaws, suggesting large-scale refactoring, and debugging complex issues.

Limitations and Requirements

Despite its capabilities, there are practical considerations including latency, token budget management, and the 'Lost in the Middle' phenomenon.

Comparison to Alternatives

This contrasts with models that have smaller context windows, such as 128,000 tokens.

Summary

In conclusion, Google Gemini 2.5 models provide a 1 million token context window that enables the analysis of entire codebases in a single prompt.