Key Features

Persistent sidebar assistant with cross-tab awareness and context across pages and sessions
Agentic 'autopilot' mode that executes multi-step tasks (email replies, calendar events, form filling) in the background
Page, article, and email summarization with clickable inline citations
Natural-language commands from the address bar (e.g., 'summarize this page', 'close distracting tabs')
Connectors for Gmail, Google Calendar, and Slack for inbox and scheduling automation
Built-in ad and tracker blocker, no separate extension required
Deep Research, voice mode, and shopping assistance inside the browser
Multi-model backend (Claude, GPT, Gemini); Model Council parallel synthesis for Max subscribers
Cross-platform: macOS, Windows, Android, and iOS

Pros & cons

Pros

Free to download with the core agentic features intact (summaries, Deep Research, voice, autopilot)
Sidebar with cross-tab context feels more integrated than pop-out AI add-ons
Genuinely automates tedious browsing chores like inbox triage and tab cleanup
Chromium base means existing Chrome extensions and habits carry over
Built-in ad/tracker blocking with no extra setup

Cons

Serious security exposure: vulnerable to prompt-injection 'CometJacking' attacks that hijack the agent via malicious URLs to exfiltrate email/calendar data
Independent testing (LayerX research, 2025) found it up to 85% more susceptible to phishing and web attacks than Chrome; researchers tricked it into completing a phishing flow in under four minutes
Granting the agent inbox/calendar/file access removes human checkpoints and creates a large attack surface across authenticated sessions
Perplexity has stated a motive of collecting data 'outside the app to better understand you,' raising privacy concerns
Agent reliability is uneven on complex multi-step tasks and it competes against entrenched browsers

Pricing

Plan	Details
Free	Free download on macOS, Windows, Android, and iOS with core AI features (agentic search, page summarization, voice, Deep Research, shopping); no credit card required.
Starter	Comet Plus add-on: $5/mo
Pro	Perplexity Pro (includes Comet Plus): $20/mo

Also: Perplexity Max (Model Council): $167/mo billed annually. Comet itself is free; Perplexity's free version includes Comet. Browser became free worldwide on 2026-03-18 (paywall dropped); Comet Plus $5/mo adds premium publisher content and is bundled with Pro/Max. Max price verified on the official pricing page 2026-10-12.

Tips & Best Practices

Limit which accounts (email, calendar, banking) you connect; grant the agent only what a task needs
Treat links and pages with caution, since hidden instructions can hijack the assistant via prompt injection
Use natural-language address-bar commands like 'summarize this' or 'group these tabs' to save clicks
Reserve autopilot for low-stakes chores; review agent actions before letting it touch sensitive accounts

Final Recommendation

Perplexity Comet is a freemium AI tool best suited for Perplexity power users wanting AI built into the browser, Researchers and analysts juggling many tabs.

Perplexity Comet

Key Features

Pros & cons

Pros

Cons

Pricing

Tips & Best Practices

Final Recommendation

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Key Features

Pros & cons

Pros

Cons

Pricing

Tips & Best Practices

Final Recommendation

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