About Perplexity
Perplexity is a commercial AI search and answer product. Instead of returning a list of links, it reads sources from the web and writes a summarized answer to a question, with citations so users can check where information came from.
It is a hosted, proprietary service and cannot be self-hosted. The vendor's website blocked automated access when this entry was prepared, so current features, models and plan pricing should be confirmed on the official site. Open-source projects such as Fyin aim to offer a locally run alternative.
Key features
- Conversational AI search
- Answers with source citations
- Follow-up questions in context
- Web and mobile access
Good fit for
- →Quick research with cited answers
- →Replacing traditional search for complex questions
- Tags
- ai-search
- answer-engine
- research
- llm
- citations
Perplexity: questions and answers
- What is Perplexity used for?
- Perplexity is an AI answer engine that responds to questions with summarized answers and cited web sources. It is a good fit for quick research with cited answers and replacing traditional search for complex questions.
- Is Perplexity open source?
- No. Perplexity is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Perplexity include Scira, Vane and Farfalle.
- What are some alternatives to Perplexity?
- Perplexity competes with ChatGPT, Claude and Microsoft Copilot. For open-source options, see Enlisted's ranked list of open-source Perplexity alternatives.
Open-source alternatives to Perplexity
See all
Scira
AI Tools
Scira (Formerly MiniPerplx) is a minimalistic AI-powered search engine that helps you find
AGPL-3.0vs Perplexity★ 12kVane
AI Tools
Vane is an AI-powered answering engine.
MITvs Perplexity★ 37k
Farfalle
AI Tools
🔍 AI search engine - self-host with local or cloud LLMs
Apache-2.0vs Perplexity★ 3.5k
GPT Researcher
AI Tools
An autonomous agent that conducts deep research on any data using any LLM providers
Apache-2.0vs Perplexity★ 30k
Khoj
AI Tools
Khoj is an applied artificial intelligence company building safe, useful AI software for h
AGPL-3.0vs ChatGPT★ 38k
BrowserOS
AI Tools
BrowserOS neo, formerly BrowserClaw, is a local, open-source browser your AI agents (Claud
AGPL-3.0vs Perplexity★ 14k
SaaS alternatives to Perplexity
See all
ChatGPT
AI Tools
ChatGPT is OpenAI's conversational AI assistant for answering questions, writing, coding and analysis through web and mobile apps.
SaaS
Claude
AI Tools
AI assistant from Anthropic for writing, analysis, coding and document work
SaaS
Microsoft Copilot
AI Tools
Microsoft's AI chat assistant with web search, image creation and Office integration
SaaS
Grok
AI Tools
xAI's chat assistant with live web and X post search, image generation and reasoning
SaaSYou.com
Search
AI-assisted search engine and assistant with web and chat answers
SaaS
Kagi
Search
Subscription search engine with no ads and per-site ranking controls
SaaS

