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best practice

Utilize Claude Sonnet 5’s 1M Token Context for Massive Document Analysis

Feed entire projects into Claude Sonnet 5 for instant, high-context analysis.

Leverage the 1-million-token context window of Claude Sonnet 5 to analyze massive datasets or complete codebases in a single prompt.

Claude

The Scenario

You are a lead developer joining a new project and need to understand a massive, undocumented legacy codebase quickly.

Before & after

The old way

Manually skimming a 500-page PDF or 50 source files to find specific information could take 4-6 hours.

With AI

Use Claude Sonnet 5 to process large codebases or documents in seconds. Total time: 1-2 minutes for the AI to ingest and summarize.

The Prompt

I am uploading [SYSTEM_ARCHITECTURE_DOCS] and [SOURCE_CODE_FILES]. Based on these, explain how the authentication flow works and identify any potential security bottlenecks.

Claude Sonnet 5 features a 1M token context window, allowing you to feed it entire books or massive code repositories at once without losing coherence.

Source

Claude Platform - Claude Platform Docs
"Claude Sonnet 5 supports a 1M token context window, 128k max output tokens, and the same set of tools and platform features."