Perplexity

Perplexity is an AI-powered search engine that answers questions with real-time web sources, citations, and follow-up conversations.

🚀 Overview

Perplexity combines LLM reasoning with live web search for accurate, sourced answers. It solves hallucination-heavy chatbots and outdated knowledge by citing current sources. Built for researchers, students, professionals, and curious users wanting trustworthy info fast. Launched 2022; focuses on truth-seeking over generic chat.

✨ Key Features

Real-time web search + cited sources
Follow-up questions in threaded convos
Pro mode: GPT-4o, Claude 3.5, Sonar models, file uploads
Collections, Spaces, image generation, API access

🛠 Tech Stack

Proprietary LLMs (Sonar family) + web indexing; frontend React; API for integrations.

👥 Who Is This For?

This project is useful for:

Researchers needing sourced answers
Students & writers verifying facts
Professionals doing quick deep dives
Users tired of Google + hallucinations

📸 Screenshots / Demo

Live demo: https://www.perplexity.ai
Try: https://www.perplexity.ai/search

🔥 Project Status

🟢 Actively building
Last updated: 2026-01-31

❓ FAQ

Is this project free?

Freemium — Free with limits; Pro $20/mo for unlimited + advanced models.

Is the source code available?

No — proprietary.

Can I contribute?

No open contributions; jobs open.

What's coming next?

More models, better multimodal, enterprise features.

📬 Contact & Links

Built with ❤️ and kept warm on WarmIndex.