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Search and research AI

AI tools centered on search, answer engines, synthesis, and grounded research workflows.

20 tools in this category

Perplexity

Perplexity

An AI answer engine built around search, citation-backed responses, and research workflows.

Perplexity is used to research topics on the web, compare sources, ask follow-up questions, and get cited answers that are easier to verify than a plain chatbot response.

Audience
Hybrid
Access
SaaS

Consensus

Consensus

A search tool focused on surfacing findings from scientific literature in a concise, question-driven format.

Consensus is used to ask research questions in plain language, find relevant papers, and quickly understand where the evidence points.

Audience
Hybrid
Access
SaaS

Ought

Elicit

A research assistant built to help synthesize papers, extract evidence, and accelerate literature reviews.

Elicit is used to search academic work, summarize findings, compare evidence across papers, and build faster research workflows for study or analysis.

Audience
Hybrid
Access
SaaS

Exa

Exa

A search infrastructure company offering AI-native web search and retrieval tools for developers and research apps.

Exa is used to power AI search experiences, retrieve high-quality web results, and build research or agent products with search APIs.

Audience
Developer
Access
API

LlamaIndex

LlamaIndex

A framework focused on knowledge retrieval, data connectors, and agent workflows over structured and unstructured data.

LlamaIndex is used to connect data sources to models, build RAG systems, and create AI applications that need indexing and retrieval logic over business content.

Audience
Developer
Access
Local

A consumer-facing assistant from Meta that blends chat, search assistance, and social platform integrations.

Meta AI is used for asking questions, generating quick content, and getting assistant-style help inside Meta's web and messaging surfaces.

Audience
Consumer
Access
SaaS

A source-grounded research notebook that turns your documents into an interactive AI workspace.

NotebookLM is used to upload notes and documents, ask grounded questions against them, generate summaries, and build research briefs or study aids anchored to the provided sources.

Audience
Consumer
Access
SaaS

Phind

Phind

A developer-focused answer engine that combines search, code understanding, and assistant-style responses.

Phind is used by developers to search technical topics, debug issues, compare implementation approaches, and get cited coding help quickly.

Audience
Developer
Access
SaaS

You.com

You.com

A search and assistant product that combines web retrieval, chat, and workflow-style productivity helpers.

You.com is used to ask search-backed questions, compare web sources, summarize results, and perform lightweight productivity tasks in one interface.

Audience
Hybrid
Access
SaaS