Best AI Research Tools (2025)
4 tools compared. Find the perfect AI research tool for your workflow.
#1
Claude
Best for long-form writing and complex coding
✓ Best writing quality✓ 200K context window
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#2
ChatGPT
Most versatile AI assistant for everything
✓ Best all-rounder✓ Free tier available
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#3
Perplexity
AI-powered search engine with citations
✓ Always cites sources✓ Real-time web data
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#4
Gemini
Google's AI with massive context and real-time data
✓ 2M token context window✓ Real-time Google data
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