Perplexity
FreemiumAI answer engine with real-time web citations
What is Perplexity?
Perplexity is an AI-powered answer engine that searches the live web and answers with inline citations, making it the go-to for research where sources matter. Pro adds top frontier models, deep research reports and file analysis. It has largely replaced traditional search for many knowledge workers, though citation quality still requires occasional verification and long creative writing is not its focus.
Key Features
- ✦Real-time web search with citations
- ✦Deep Research reports
- ✦Multiple frontier models in one place
- ✦Spaces for team research
Pros
- ✓Transparent sourcing
- ✓Excellent for current events
- ✓Model choice in one subscription
Cons
- ✗Not ideal for creative writing
- ✗Citations occasionally imprecise
Use Cases
- Market and academic research
- Fact-checking
- Competitive analysis
- News monitoring
Frequently Asked Questions
Is Perplexity free in 2026?
Perplexity offers a free plan; paid plans start at $20/mo.
What is Perplexity used for?
AI answer engine with real-time web citations. Main use cases: Market and academic research, Fact-checking, Competitive analysis, News monitoring.
What are the best Perplexity alternatives?
The most popular alternatives to Perplexity are ChatGPT, Google Gemini, Claude.
Does Perplexity have an API?
Yes, Perplexity offers a developer API.
Best Perplexity Alternatives
See full list →ChatGPT
The most popular AI assistant for conversation, writing and analysis
Google Gemini
Google’s multimodal AI deeply integrated with Search and Workspace
Claude
FeaturedAnthropic’s AI assistant known for nuanced writing and deep reasoning
DeepSeek
Frontier-class open AI models at disruptive prices
NotebookLM
Google’s AI research assistant grounded in your sources
Grok
xAI’s unfiltered assistant with real-time X data