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Semantic Scholar is a free AI-powered research tool developed by the Allen Institute for AI that helps users search and explore scientific literature, using advanced natural language processing and machine learning to automatically summarize, classify, extract keywords from, and identify citations in academic papers, providing more efficient, accurate, and easy-to-use academic literature search.

Miku AI is an efficient AI search engine developed by the Hyperspace technology team that delivers fast and accurate search results and, using advanced agent-driven and natural language processing technologies, understands user search intent and answers specific questions in natural language in addition to providing traditional web link results.

Reddo is a global product information AI search engine founded by three entrepreneurs from Alibaba, Yitu, and ByteDance, using GraphRAG technology to help users quickly locate products worldwide and semantically search any public product and company information, with particular strength in verticals such as websites, apps, games, films, and open-source projects.

Kaisou AI is a general-purpose AI question-answering search engine that uses natural language processing, deep learning, and large model technology to accurately understand users' search intent and quickly provide the most relevant and reliable information; it offers direct, precise answers, automatically summarizes key points, generates outlines and mind maps for download, and serves fields such as learning, research, and industry analysis.