Google Gemini

## Does Google Gemini 2.5 support a 1 million token context window for full codebase analysis?

## 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.