Claude Research

Best Claude AI Prompts for Research (2026)

Claude Sonnet 5 and Fable 5 are outstanding research assistants — particularly for tasks that require synthesising large amounts of text, maintaining logical consistency across long documents, and producing structured analytical outputs. With 1M token context windows, Claude can process entire research papers, legal documents, or codebases in a single session. These prompts are optimised for claude.ai Pro and the Anthropic API.

⌨️ 6 prompts 🕐 Updated Jul 21, 2026

💡 How to use these prompts: Replace everything in [BRACKETS] with your specific details before sending. Click Copy to copy any prompt to your clipboard instantly.

Synthesize Multiple Sources

Synthesize multiple sources into one coherent summary

I am going to paste [NUMBER] sources on [TOPIC]. Please: 1. Identify the main points all sources agree on 2. Note where sources disagree and why 3. Identify the strongest evidence across all sources 4. Flag anything unsupported or contradicted 5. Produce a synthesized summary in [NUMBER] paragraphs [PASTE ALL SOURCES]

Analyze a Long Document

Extract insights from very long documents using full context

Please analyze the following long document and provide: 1. An executive summary (3-4 sentences) 2. The 7 most important points 3. Any claims that seem questionable 4. Action items or decisions required 5. Anything that appears contradictory [PASTE DOCUMENT — up to 1M tokens supported]

Competitive Intelligence Report

Build a structured competitive intelligence report

Analyze [COMPANY/PRODUCT] vs [COMPETITOR 1] and [COMPETITOR 2]. Structure as an intelligence report covering: 1. Market positioning of each 2. Product strengths and weaknesses 3. Pricing and business model comparison 4. Target customer differences 5. Strategic direction signals 6. Direct verdict: who wins for which buyer

Devil's Advocate Analysis

Stress-test any idea or plan with a rigorous counterargument

I believe [YOUR POSITION OR PLAN]. Play devil's advocate. Give me the strongest possible case AGAINST this position: 1. The 5 most compelling arguments against it 2. Evidence or examples that undermine it 3. What I am probably overestimating 4. What I am probably underestimating 5. The conditions under which I would be completely wrong Be rigorous. Do not soften the critique.

Research Summary for a Meeting

Prepare for any meeting with a focused research brief

I have a meeting about [TOPIC] with [AUDIENCE]. Give me: 1. A 2-minute verbal summary I can open with 2. The 5 most important facts or data points 3. 3 questions I should be prepared to answer 4. 3 questions I should ask 5. Any recent developments in the last 30 days I should know about

Spot Logical Fallacies

Find weak reasoning and logical fallacies in any argument

Analyze the following argument for logical fallacies and weak reasoning: [PASTE ARGUMENT OR ARTICLE] 1. Identify each logical fallacy by name and explain it 2. Point to the specific sentence containing the fallacy 3. Suggest how the argument could be made more rigorously 4. Rate the overall quality of reasoning on a scale of 1-10 with explanation