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Semantic Scholar

Free AI-powered academic search engine from Allen AI — find, filter, and understand 200M+ research papers.

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Semantic Scholar is a free AI research search engine built by the Allen Institute for AI. It indexes 200 million+ papers across all scientific fields and uses AI to extract key data points, generate summaries, identify influential citations, and recommend related research. The open Research Corpus and API are widely used by researchers and developers.

Key Features

  • 200 million+ papers across all fields
  • AI-generated paper summaries (TLDR)
  • Highly influential citations highlighted
  • Research feed based on your interests
  • API for programmatic access
  • Open and free — no paywalls

Pricing

  • Free: Completely free, no account required for basic search

Best For

Researchers, students, and developers who need a free, comprehensive academic search engine with AI features — particularly valuable for computer science and biomedical research.

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