Perplexity
AI answer engine that combines web search with LLM reasoning and inline source citations.
Perplexity is an AI answer engine that combines web search with LLM reasoning and inline source citations. Combines real-time web search with large language model reasoning to generate answers.
What it does well
- Combines real-time web search with large language model reasoning to generate answers.
- Provides inline source citations linked to the original sources used in each response.
- Supports multiple LLM backends including models from OpenAI and Anthropic.
- Available as native applications on macOS, iOS, and Android in addition to the web interface.
Where it falls short
- Free tier limits the number of Pro searches per day.
- Core answer generation depends on live internet connectivity for web search and citations.
Tagged
- Supports Claude
- Supports GPT
- Web-based
- Free
- Freemium
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Picked by shared tags inside the AI Chatbots & Assistants.
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Concepts you should know
- AI Overview
Google Search's generative answer block that sits above the classic blue-link results. Powered by Gemini, it summarises top sources and links out to them. The biggest single AEO/GEO citation surface as of 2026.
- Citation
When a generative-search system attributes part of its answer to a specific source URL, usually with a footnote-style number or an inline link. The visible signal that a brand was used to ground a model's answer.
Frequently asked questions
- What is Perplexity?
- Perplexity is an AI answer engine that combines web search with LLM reasoning and inline source citations.
- Is Perplexity free?
- Perplexity offers a free tier and paid plans with higher limits or premium features.
- What platforms does Perplexity support?
- Perplexity runs on web, mac, ios, android.
- What category does Perplexity belong to?
- Perplexity is in the AI Chatbots & Assistants category — Custom GPTs, Claude apps, niche assistants — chat interfaces aimed at a specific user, topic, or workflow.
- What are the downsides of Perplexity?
- Free tier limits the number of Pro searches per day. Core answer generation depends on live internet connectivity for web search and citations.