research

Perplexity

by Perplexity AI

Perplexity is an AI-powered answer engine that combines real-time web search with large language models to deliver cited, conversational responses to queries. It goes beyond raw model capabilities by autonomously fetching, synthesising, and attributing live web sources, supporting multi-turn follow-up questions, and offering a Deep Research mode that autonomously plans and executes multi-step research tasks. Available on web, iOS, Android, and as a desktop app, it targets both casual users and professionals who need fast, trustworthy research.

8 Overall Score

Scores

Capability
8
Ease of Use
9
Documentation
7
Reliability
8
Value
8
Momentum
9

Details

Status
active
Pricing
freemium
Launch Date
2022-12
Last Updated
2026-03-15

Key Features

  • Real-time web search with inline citations on every answer
  • Pro Search & Deep Research for autonomous multi-step research tasks
  • Multi-turn conversational follow-ups with context retention
  • Spaces (collaborative research collections with shared context)
  • Multi-model support — switch between GPT-4o, Claude, Sonar, and more

Tech Stack

PythonReactTypeScriptGPT-4oClaudeMistralSonar (proprietary model)Bing Search APIAWS