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Best AI Tools for Doing Research (2026)

AI is transforming research from tedious manual searching into intelligent, cited, comprehensive analysis.

#1 — Perplexity

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Purpose-built for research. Every answer has citations. Pro mode does multi-step deep research automatically.

Best for: Web research, cited answers, competitive analysis

#2 — Elicit

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Specialized for academic research. Finds papers, extracts key findings, and helps synthesize across sources.

Best for: Academic papers, literature reviews, data extraction

#3 — Claude

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Analyze uploaded research documents with 200K context window. Synthesize complex information across multiple sources.

Best for: Document analysis, synthesis, long-form research

#4 — Perplexity Pro

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Unlimited deep research with access to GPT-4, Claude, and other models. File upload for document analysis.

Best for: Deep research, file analysis, multi-model access

#5 — ChatGPT

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Web browsing for current research, file analysis for uploaded documents, and brainstorming research frameworks.

Best for: Current research, file analysis, research planning

#6 — Google Gemini

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Deep Google Search integration for factual research. 1M token context for analyzing very large documents.

Best for: Google-integrated research, large document analysis

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