Comet is a browser unlike anything you’ve ever used

The Perplexity Comet arrived in 2025 promising to reinvent the web browser concept by integrating an artificial intelligence agent directly into the core of the browsing experience. We’re not talking about an AI extension stuck onto Chrome, nor a chatbot that opens in a separate tab. Comet was built from scratch with the proposal that AI takes actions for you while you browse: fills out forms, compares products, summarizes pages, executes searches and even performs tasks on websites without you needing to click through each step. The short answer for those with their finger on the trigger: it’s worth it for a very specific profile, and for most Brazilians there are still real barriers to consider.

If you followed Perplexity’s launch as a search engine in 2022 and became a fan of its approach of direct answers with source citations, Comet is the natural evolution of that philosophy. The company stepped out of the search field and into the browser field because it understood that the next step wasn’t just answering questions, but executing entire tasks on the web. In 2026, with the paid version consolidated and some significant updates already delivered, it’s possible to make a more mature assessment of the product.

The problem is that Comet is not officially available in Brazil with ease, has no Anatel homologation (as software, this point doesn’t apply the same way as hardware, but regional availability is restricted), and the plan that unlocks the most interesting features requires a dollar-based subscription. Before deciding, you need to know exactly what you’re buying.

Perplexity Comet Specs

What Comet’s AI agent actually does

The heart of Comet is what Perplexity calls a navigation agent: a system that receives an objective in natural language and executes a sequence of actions in the browser to achieve it. Imagine saying “find the cheapest flight from São Paulo to Buenos Aires next Friday and show me the three best options with baggage included” and the browser opens ticket sites, applies filters, compares results and delivers you a summary, without you needing to do any of that manually.

This concept is called agentic browsing, and it’s different from an assistant that only answers questions. The agent really controls the browser as if it were a user, interacting with page elements, dynamically reading content and making chained decisions. In practice, according to public Perplexity information, Comet can perform tasks on e-commerce sites, news portals, productivity services and search platforms.

The limitation is real and you need to know: the agent doesn’t have access to everything. Sites with complex two-factor authentication, advanced CAPTCHAs or highly dynamic interfaces can halt the flow. Perplexity doesn’t promise universal automation, and the best use cases are repetitive research and comparison tasks, not critical corporate automations.

Performance and user experience

Because it’s based on Chromium (the same engine behind Chrome, Edge and Brave), Comet inherits full compatibility with modern websites, support for Chrome Web Store extensions and familiar rendering behavior. This is good news for anyone afraid of switching browsers and losing access to a tool they already use at work.

The downside of Chromium is RAM consumption, well known to those with many tabs open in Chrome. Comet adds a layer of AI processing on top of that, meaning machines with less than 8 GB of RAM can feel the impact, especially when the agent is active. According to the technical specifications released by the manufacturer, the recommendation is at least 8 GB of RAM for smooth use, with 16 GB for those who will use the agent intensively.

Comet’s integrated search uses Perplexity’s own mechanism, that direct answer format with cited sources that differentiates the company from traditional Google. If you already use Perplexity as your primary search engine, the transition to Comet will feel natural. If you prefer traditional Google search with a list of links, you’ll need an adjustment period.

Privacy and what Perplexity does with your data

This is the point that generates the most debate. For the agent to work, it needs to see what’s happening on your screen and interact with pages you access. This raises legitimate questions about data collection. According to Perplexity’s public privacy policy, browsing data is used to improve the product, with opt-out options in some categories.

The problem for Brazilian users is that the company is American and data is processed outside Brazil, which places the issue under LGPD (General Data Protection Law, the Brazilian equivalent to European GDPR). Perplexity has no office in Brazil or formal legal representative registered for data protection purposes, as far as available public information indicates. If privacy is a top priority for you, this needs to factor into your assessment.

For general research tasks and product comparison, the risk is comparable to using any American AI service. For activities involving sensitive information, banking access or confidential documents, the recommendation is extra caution with any navigation agent, regardless of the developer.

Comet in Brazil: availability, price and importing

Comet is software, so there’s no physical import process or Anatel homologation involved. You download from Perplexity’s official website and install normally. The point of attention is the subscription plan: Perplexity Pro, which unlocks full agent use, costs approximately US$20 per month in the American market according to the official website. In reais, depending on the exchange rate and taxation on international card payments (6.38% IOF on foreign currency purchases), the bill can be around R$120 to R$150 per month, considering the dollar at 2026 levels.

There is no plan with billing in reais or structured support in Portuguese, as far as public information indicates. The free plan exists, but severely limits the number of agent searches per day, making the experience quite restricted for anyone who actually wants to test the product’s differential.

For those seeking integrated AI alternatives and wanting to compare productivity options with models like Gemini, it’s worth checking how to use Nano Banana with Gemini for free, which shows a different way to integrate AI into your workflow without depending on dollar-based subscriptions.

Pros and cons

Pros:

• AI agent integration directly in the browser, without separate extension
• Chromium base ensures full compatibility with sites and Chrome extensions
• Integrated Perplexity search with direct answers and cited sources
• Available for Windows and macOS without import process
• Free plan allows testing the concept before subscribing

Cons:

• Paid plan in dollars, no reais billing option
• No official support in Brazilian Portuguese
• Data collection raises relevant questions for Brazilian users under LGPD
• RAM consumption above normal, especially with agent active
• Agent doesn’t work perfectly on all sites (CAPTCHAs, complex authentication)
• Limited availability in Brazil without official support channels

Competitors and alternatives in Brazil

Edge with Copilot is the most accessible alternative for those who want AI in their browser at no extra cost and prefer Portuguese support. Brave is the best choice for those prioritizing privacy. Comet differentiates itself precisely through the autonomous agent, which competitors haven’t yet replicated in the same depth. If you want to better understand how cutting-edge AI models work before choosing which platform to adopt, the guide on how to use Gemini 2.5 Pro for free in Brazil can help put options in perspective.

Frequently asked questions about Perplexity Comet

Is Comet available in Brazilian Portuguese?

The interface and support are not officially localized in Portuguese, as far as public information from 2026 indicates. The browser works normally on Portuguese-language pages, but menus and settings are in English. Check the official website before downloading if there’s been a recent language update.

Do I need to pay to use Comet?

There’s a free version, but it severely limits AI agent use, which is the product’s main differential. To take full advantage of Comet, the Pro plan is necessary, with billing in dollars via international card.

Is Comet safe to use at work?

For general research and product comparisons, the risk is comparable to other American AI services. For accessing corporate systems with sensitive data, it’s recommended to review Perplexity’s latest privacy policy and, if applicable, check with your company’s IT or legal department before using the agent in critical work environments.

Does Comet work on older computers?

Because it’s based on Chromium, the minimum requirement is similar to Google Chrome. The manufacturer’s recommendation for use with the agent active is at least 8 GB of RAM. On machines with 4 GB or less, the experience tends to be slow, especially with many tabs open.

Is Perplexity Comet worth it in 2026?

Comet is a technically interesting product and genuinely innovative in the agentic browsing concept. If you follow AI launches and want to be on the frontier of what’s being developed, the experience is worth exploring, even with limitations.

For the average Brazilian user, however, the barriers are concrete: dollar billing, no Portuguese support, privacy questions under LGPD and a free plan that doesn’t deliver the product’s essentials. Those with technical profiles, already paying for Perplexity Pro for searches and wanting to centralize everything in one tool will find real value. Those seeking AI in their browser without additional cost will be better served with Edge and Microsoft’s Copilot, which is already in Portuguese and works without extra monthly fees.

Recommended for: research professionals, analysts, journalists and technology enthusiasts who already subscribe to Perplexity Pro, use the product as their main search engine and want to automate repetitive web research tasks. It also makes sense for those already paying for similar tools in dollars and want to consolidate subscriptions.

Price range: free with severe limitations; Pro plan around US$20/month (approximately R$120 to R$150 depending on exchange rate and IOF applied to card bill). Check Perplexity’s official website for updated values before subscribing.