Best AI Agents

OpenAI Deep Research

ChatGPT agent that writes multi-page research reports

A ChatGPT capability that searches and reads many web sources, then writes a cited report on a topic. A single request can take several minutes and may cover dozens of pages.

openaichatgptreportscitations

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Consensus

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Search engine for peer-reviewed research

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Research assistant for scientific papers

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Gemini Deep Research

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Gemini mode that researches a topic and writes a report

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GPT Researcher

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Open source agent that writes cited research reports

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Open Deep Research

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LangChain's open source deep research agent

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Perplexity

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Answer engine with a multi-step research mode

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