Research
ChatGPT
ChatGPT is OpenAI's chat app. People use it to ask questions, draft text, analyze files, and start agents such as Codex.
- chat
- writing
- files
Freemiumchatgpt.com
Research
Search, answers, and reading tools for finding things out.
12 tools
Guides: Best AI research tools.
All Research tools
Research
Claude
Claude is Anthropic's chat app for questions, long documents, and writing. Paid plans cover heavier use.
- chat
- documents
- writing
Freemiumclaude.aiResearch
Consensus
Consensus searches peer-reviewed papers and summarizes what they report. Answers point back to the studies they came from.
- papers
- citations
Freemiumconsensus.appResearch
DeepSeek
DeepSeek Chat is the chat app for DeepSeek's models. It answers questions and helps with reasoning and code, with a free tier.
- chat
- reasoning
- code
Freemiumchat.deepseek.comResearch
Elicit
Elicit searches academic papers and pulls findings into a table. Researchers use it to screen a literature set.
- papers
- literature review
Freemiumelicit.comResearch
Exa
Exa is a search engine built for research and for AI apps. It finds pages by meaning, and developers can call it from an API.
- search
- API
Freemiumexa.aiResearch
Gemini
Gemini is Google's chat app. It answers questions, works with Google apps, and can look at files, images, and the live web.
- chat
- web
Freemiumgemini.google.comResearch
Gemini Notebook
Gemini Notebook, formerly NotebookLM, answers questions from documents you upload. It can also turn those sources into a briefing or an audio overview.
- documents
- summaries
- NotebookLM
Freenotebook.google.comResearch
Grok
Grok is a chat assistant on the web and in mobile apps. It answers questions and can work with files, images, and voice.
- chat
- search
- files
Freemiumgrok.comResearch
Microsoft Copilot
Microsoft Copilot is a chat assistant on the web and inside Windows and Microsoft 365. Paid work plans can use it with your own files.
- chat
- Microsoft 365
- search
Freemiumcopilot.microsoft.comResearch
Perplexity
Perplexity answers questions and cites the pages it used. It is built for research more than for a long open-ended chat.
- search
- citations
Freemiumperplexity.aiResearch
Semantic Scholar
Semantic Scholar is a free academic search engine from the Allen Institute for AI. It finds papers and shows citations and short summaries.
- papers
- citations
- search
Freesemanticscholar.org