Analyze Entire Codebases at Once Using Opus 5's Massive Context Window
Process massive datasets in one go with the expanded context window.
Leverage the 1M token context and 128k output limit to analyze massive datasets or generate long-form reports in a single prompt.
The Scenario
You have a massive set of project files, legal documents, or a large codebase that needs a thorough, holistic analysis without splitting the data.
Before & after
Users formerly had to truncate documents, summarize them in parts, and manually stitch findings together, taking 2–3 hours for large projects.
Upload your entire project or documentation set (up to 1M tokens) and ask for a comprehensive summary or cross-reference in 1–2 minutes.
The Prompt
I have uploaded several large documents regarding [PROJECT_NAME]. Please use your full 1M token context window to identify every instance where [SPECIFIC_COMPONENT] is mentioned and synthesize a 5,000-word detailed implementation guide.
Opus 5 supports a 1M token context window and a massive 128k output window. This allows for processing entire codebases or long-horizon knowledge work in a single turn without losing context.
Source
Claude Platform release notes - Claude Platform Docs"Claude Opus 5 supports a 1M token context window... and 128k max output tokens."