Compare several sources and identify where they disagree
Map agreements, contradictions and evidence gaps without forcing a false consensus.
Best for
- Reports, articles and policy documents
What you need
- Full text or links for each source
- The question being investigated
Limitations
The comparison is limited to the sources supplied and cannot establish truth by majority vote.
Recommended tool
Claude
Claude can compare several long documents in one structured analysis.
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Your copy-paste prompt
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Act as a source-comparison analyst. Compare only [SOURCES] regarding [QUESTION]. For every material claim, show which sources agree, disagree or remain silent; quote the relevant passage; include clickable source link, publisher and publication date. Distinguish factual contradiction, difference in definition, date, scope, method and interpretation. Do not invent evidence or decide by source count. State uncertainty and missing primary evidence. Ask questions if sources or question are incomplete. Return claim matrix, disagreement analysis and research gaps.
Step-by-step instructions
- 1
Collect complete sources and record their dates.
- 2
Run the prompt with one precise comparison question.
- 3
Open and verify every quotation and link.
- 4
Investigate disagreements using primary sources where possible.
Check the result
- Quotations match sources
- Dates and scope are compared
- Silence is not treated as disagreement
- Uncertainty remains explicit
If the result is poor
- If analysis is shallow, ask it to classify the reason for each disagreement.
- If quotes are missing, require one exact passage per claim.
Privacy and accuracy
- Do not treat the model's synthesis as a substitute for reading important sources.
Sample input
Three reports on remote-work productivity published in different years.
Expected output
A claim matrix showing agreement on satisfaction but methodological disagreement on measured output.
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Part of a pathway
This recipe appears in an ordered set of recipes you can work through in sequence.