Perplexity AI Cheat Sheet: How an ‘Answer Engine’ Is Challenging Gemini, ChatGPT
Perplexity bills itself as an “AI-powered answer engine,” not a chatbot. The distinction matters: every query triggers a real-time web search, source compilation, and a cited answer, more like a turbocharged research assistant than a conversational AI friend.
Founded in 2022 and valued at roughly $20+ billion, Perplexity has grown well beyond search. It now offers an AI-native browser (Comet), a Mac-based personal AI agent, enterprise tools, finance integrations, health data connectors, and a developer API platform.
Search is the core, sourced, cited, and fast. Everything else (writing, images, coding, agents) layers on top of that search-first foundation.
How does Perplexity work?
When you submit a query, Perplexity searches the web in real time, gathers information from authoritative sources, and uses large language models to synthesize a clear, cited answer. In-text citations let you hover to preview sources and click through to read further.
Model options
Perplexity has its own in-house model — Sonar — but also offers access to third-party models. On Pro and Max plans, you can choose between: Sonar (default), GPT-5, Claude Sonnet/Opus, Gemini 3.1 Pro, and Grok 4.
Perplexity post-trains third-party models, which means responses via Perplexity may differ from those of the models used directly, generally leaning more toward precise answers and less toward open-ended conversation.
Three main modes
- Search (fast answers): Real-time web results, cited sources, related questions. Best for everyday lookups.
- Deep research (comprehensive reports): Autonomously reads hundreds of sources, reasons through material, and delivers structured reports in 2–4 minutes.
- Labs (create and build): Build web apps, documents, slides, dashboards, and more using code execution and image generation together.
Where is Perplexity available?
- Web: perplexity.ai, available globally, no account needed for basic search.
- iOS and Android: Full-featured apps including voice chat and assistant functions.
- macOS and Windows: Desktop apps available. Personal Computer agent requires Mac.
- Comet browser: Mac, Windows, iOS, and Android. AI-native browser with a built-in assistant.
- Integrations: Gmail, Outlook, Slack, WhatsApp, and more. Firefox default search option.
- Snapchat: $400M deal to power conversational search inside Snapchat chats.
How much does Perplexity cost?
Perplexity has several pricing tiers:
- Free: Unlimited quick searches, five Pro searches per day, standard AI model access
- Pro: $20 per month or $200 per year (about $17/month if billed annually). Includes unlimited Pro searches, choice of advanced models (GPT-5, Claude, etc.), file uploading, and daily image generation
- Max: $167 per month when billed annually (or $200/month). Includes everything in Pro, plus advanced agentic AI tools and priority support
- Education Pro: $10 per month for students and faculty
- Enterprise Pro: $34 per seat per month when billed annually
- Enterprise Max: $271 per seat per month when billed annually
Key features in depth
Comet AI-native browser
Comet is Perplexity’s answer to Chrome, built on Chromium (the same codebase as Google Chrome), so switching is familiar. The AI assistant is baked into the browsing experience — summarizing pages, comparing tabs, drafting emails, and completing purchases without leaving the browser. It launched as a $200/month premium product before going free globally. Available on Mac, Windows, iOS, and Android.
Perplexity Computer and Personal Computer
Perplexity Computer is a cluster of AI agents capable of handling complex, multi-step tasks. Personal Computer extends this to a dedicated Mac mini that runs 24/7, connecting to local files, iMessage, Apple Mail, Calendar, and other native apps. Users can start a task on iPhone and have their Mac handle it in the background.
Perplexity Health
A suite of connectors linking personal health data — Apple Health, electronic health records from over 1.7 million care providers, Fitbit, Ultrahuman, Withings, and more — to Perplexity’s search and Computer tools. Users can ask questions about their own lab results, medications, and activity data in one place. Available to Pro/Max users in the US. Not a substitute for professional medical advice.
Personal finance with Plaid
Perplexity integrates with Plaid to connect bank accounts, credit cards, loans, and brokerage accounts from 12,000+ financial institutions. Computer can then build custom budget trackers, net worth dashboards, debt payoff plans, and cash flow forecasts from real account data. Available on desktop in the US and Canada, Plaid provides read-only access, and user data never touches Perplexity’s servers.
Spaces
Topic hubs where you can bundle related searches, uploaded files, and custom AI instructions. Useful for ongoing research projects, for example, a dedicated Space for competitive analysis or trip planning. Available on free and paid tiers.
Discover
A curated news feed with five interest categories: arts and culture, entertainment, finance, tech & science, and sports. Also surfaces trending stocks and weather. Functional but limited in customization.
Pros and cons
| Strengths | Weaknesses |
|---|---|
| Best-in-class AI web search interface | Deep research less thorough than ChatGPT |
| Cited sources on every answer | Unclear which model powers media generation |
| Wide model selection | Sonar struggles with complex reasoning |
| Competitive annual pricing | Voice chat can’t share camera/screen |
| Fast image generation | Data training opt-out locked behind paywall |
| Ambitious product roadmap | Comet agent blocked from Amazon by court order |
Legal and controversies
Amazon sued Perplexity in Nov. last year, alleging its Comet browser accessed password-protected accounts without Amazon’s authorization.
A federal judge granted Amazon an injunction last month, restricting Comet from accessing Amazon’s protected systems. Reddit also sued over alleged unlicensed data scraping. On the other side, Perplexity struck a licensing deal with Getty Images to ensure properly credited visuals in AI responses. Notably, Amazon is also an investor in Perplexity.
In a separate high-profile move, Perplexity made an unsolicited $34.5 billion offer to buy Google’s Chrome browser last year — a figure that exceeds Perplexity’s own valuation — amid ongoing US antitrust proceedings against Google. Most analysts viewed it as a strategic public signal rather than a likely transaction.
Privacy and data
Perplexity collects queries, device data (including IP and location), and information from third-party sources such as employment databases and consumer marketing lists.
By default, your data is used to train AI models. Paid subscribers can opt out of training. Perplexity promises not to sell user data but may share it with service providers. Health and finance data from connectors is encrypted in transit and at rest and is explicitly not used for model training or sold to third parties.
Who are Perplexity’s main competitors?
Perplexity is fighting a war on two fronts:
- Search engines: Google and Microsoft Bing are its primary targets.
- AI chatbots: ChatGPT (OpenAI), Gemini (Google), and Claude (Anthropic) offer similar conversational tools, though they often lack Perplexity’s focus on real-time citations.
- E-commerce: Because of its Instant Buy features via PayPal, it is also starting to bump heads with Amazon.
- AI search: xAI Grok is integrated into X. Less censored, less source-focused. Research feature more limited.
How to get started
- Visit perplexity.ai or download the app on iOS, Android, macOS, or Windows.
- You can search without an account, but creating one unlocks history, Spaces, voice chat, and file uploads.
- Choose a model (or leave it on “Best” for automatic selection) using the toggle below the search bar.
- Use the deep research mode for complex topics and Labs to build documents, apps, or slides.
- To try Comet, download it separately from perplexity.ai/comet. It imports your Chrome bookmarks and extensions in one click.
- Upgrade to Pro ($17/mo billed annually) to unlock advanced models, unlimited Pro searches, and the ability to opt out of data training.
The bottom line
Perplexity started as a clever alternative to Google Search, but it’s quickly becoming something much bigger. Between the audacious Chrome bid, the Comet browser, the 24/7 Personal Computer agent, health tracking, financial tools, and major distribution deals with Firefox and Snapchat, this startup is swinging for the fences.
Whether they can pull it off is another question. The Amazon lawsuit highlights the legal risks of allowing AI agents to roam freely on the web. And the Chrome bid, while great for headlines, didn’t actually get them the browser.
But one thing’s clear. Perplexity isn’t content to just answer your questions. They want to be the computer you use to get things done. And they’re moving fast to make that happen.
For more on Perplexity’s push into AI agents, read our coverage of its new always-on Personal Computer for Mac.
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