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Claude / Documents, Data & Research

Claude: compare two document versions systematically

Name the files Old and New and include their revision dates. Select one section to compare before attempting the entire document.

Compiled for Sorlavit Kim · Published · Updated · 2 min read

Environment and inputs: Claude user guide · Feature and source access depend on the active account, app and organization settings. Optional file or app steps have a text-excerpt fallback. No fixed model version, price or usage quota is assumed.

What you will make

A practical Claude guide to compare two document versions systematically. Use the sample input and prompt, then check the result. Use a fictional support-document review as the practice setting. Keep passages and your interpretation in separate output fields.

Prepare the source and scope

Name the files Old and New and include their revision dates. Select one section to compare before attempting the entire document. Open Claude and start a focused conversation, or use the appropriate existing project for recurring work.

Try this prompt

In Claude, provide the prepared input, then send the following request. For real work, replace fictional details with approved facts.

Compare the approval-workflow sections in Old and New. Return Added, Removed and Changed requirements with both section references. Ignore cosmetic formatting changes.

Review the result

Verify one item from each change type directly in both files; ensure a moved paragraph is not counted as a new requirement. Record each correction and its supporting source.

If the answer is wrong or incomplete

Comparison can miss tables or scanned text. Review those parts separately before treating the difference list as complete. Put the source excerpt and the request in separate labeled blocks. For longer reviews, retain paragraph labels so corrections remain traceable.

Practice and completion check

Repeat with one incomplete input. Check the answer against the review criteria, remove unsupported claims and save the prompt with its source version. This workflow has not been verified in a customer deployment.

Source & further reading

Anthropic — Upload files to Claude

Independently written summary reviewed on 2026-11-01. The example illustrates a possible application; it is not a client case study.

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