
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. StudyMateAI records 0 monthly visits with — growth and Free pricing.

A free ChatGPT-powered study companion that lives in your browser and PDFs
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | perplexity.ai | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 88.31M (88,310,223) | 0 (0) |
| MoM Traffic Delta |
|---|
| -3.39M (-3.7%) |
| 0 (—) |
| Primary Market & Share | 🇺🇸 United States (25.5%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 63.32M | 0 |
|---|
| User Rating | 4.7 | 1.8 |
|---|
| Supported Platforms | Website | Browser Extension |
|---|
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Executes multi-step iterative web and document research across hundreds of sources, cross-checking facts and generating structured, citation-backed analytical reports that can be exported as PDFs or shared as interactive Perplexity Pages.
Lets Pro and Max subscribers switch dynamically between Perplexity's in-house Sonar models and top external models (including Claude 4, o3-pro, and Gemini) or compare multi-model reasoning outputs side by side.
Provides dedicated project workspaces where users upload local PDFs, spreadsheets, and text files, configure custom assistant instructions, and run queries that combine private document retrieval with live internet search.
Extends Perplexity from passive Q&A into agentic execution, turning high-level user requests into completed workflows, multi-tab browser actions, and automated data synthesis via the Comet ecosystem.

A free ChatGPT-powered study companion that lives in your browser and PDFs
Point the extension at a long article, lecture note, or PDF page and get a condensed version that keeps the argument intact rather than stripping it to bullet fragments.
Convert a passage into study cards you can use for active recall, which saves the manual step of rewriting notes before you can start memorizing.
Ask a direct question about what you are reading and receive a natural-language answer in the extension, without opening a separate AI chat tab.
Highlight a term or concept you are stuck on and get an immediate explanation in context, so you keep your reading rhythm instead of breaking off to search.

Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
#2Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.

Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.

Share and access study materials worldwide — with AI study tools built in

Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
AI flashcards that turn note dumps and PDFs into addictive quiz sessions

SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.


SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.


Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Free AI flashcard and study tools for students
AI sidebar and browser agent for reading, writing and research
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Share and access study materials worldwide — with AI study tools built in
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
AI flashcards that turn note dumps and PDFs into addictive quiz sessions
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Free AI flashcard and study tools for students
AI sidebar and browser agent for reading, writing and research