Perplexity Comet Browser in 2026: Free, Agentic, and Worth the Switch?

Perplexity's Comet browser had one of the more dramatic pricing arcs of any AI product in the current wave. It launched on July 9, 2025 locked behind a $200-a-month Max subscription, with a waitlist that reportedly grew faster than Perplexity could process it. By October 2025, the paywall was gone entirely. Android arrived in November, iOS followed on March 18, 2026 — a week later than planned — and hit #3 overall on the US App Store within 48 hours. Comet is now free, cross-platform, and aimed squarely at replacing the tab you keep open all day, not just the search bar inside it.

The core idea is a genuine departure from how a browser has worked since Netscape: instead of a search bar that retrieves information for you to read, Comet's sidebar assistant is an agent that acts on what it reads — summarizing a page, comparing it against a tab you had open an hour ago, filling out a form, or in Perplexity's more ambitious framing, completing multi-step tasks like booking travel or tracking a price drop entirely in the background while you keep browsing something else.

What Comet actually does, beyond "AI in your browser"

Built on Chromium, Comet supports the same extensions and feels familiar enough that switching from Chrome doesn't require relearning muscle memory. Every new tab opens with the Comet Assistant ready in the sidebar — ask it a question about the page you're viewing and it answers using the page's content combined with Perplexity's live web search, or ask it to compare what you're reading against something in a different tab, and it genuinely can. That cross-tab context awareness is consistently the feature reviewers single out as the most immediately useful, more than the flashier agentic actions.

The agentic layer goes further: type "compare the pricing of the top 3 project management tools" into the sidebar, and Comet will open tabs, read each page, and return an actual comparison — the kind of task that used to mean twenty minutes of manual tab-juggling. Background Assistant, a premium feature, extends this to tasks that run while you're not watching: tracking a price drop, drafting inbox replies, or planning and booking a trip, with progress visible in a dashboard rather than requiring you to babysit each step.

What's actually free, and what still requires Max

As of 2026, the core browser and its central agentic search, voice mode, and Deep Research features are free on Windows, macOS, iOS and Android — no subscription required, no account even needed just to download it. Pro, at $20/month, and Max, at $200/month, layer on higher usage limits, Background Assistant, Perplexity Labs, and the Model Council feature that lets Max subscribers choose which model powers their browser agent (Claude Opus 4.6 by default, with Sonnet 4.5 as an alternative). For most people, the free tier is genuinely usable day to day; it's specifically automation-heavy power users who lean on Background Assistant that still need Max to unlock the headline agentic features Perplexity showcases in its marketing.

A smaller but genuinely nice touch: Comet Plus, a $5/month add-on unlocking premium publisher content inside AI answers, comes free automatically for existing Pro and Max subscribers rather than being a separate charge on top.

The honest caveats testers keep raising

Extended hands-on reviews are consistently positive about the core experience while flagging the same two concerns worth taking seriously before relying on it for anything sensitive. First, security: Perplexity has reportedly improved Comet's defenses since early reports of vulnerabilities, but the browser has not undergone a full independent security audit as of mid-2026. The practical advice from testers who've spent real time with it: treat Comet's agent like a capable but genuinely gullible assistant, useful for low-stakes browsing and research, and keep anything involving health, legal or financial data in a separate, non-AI browser session where a malicious page can't potentially manipulate an overly helpful agent into taking an action it shouldn't.

Second, there's a real legal dimension worth knowing about specifically because it involves the browser's most ambitious feature: Amazon sued Perplexity in November 2025 over Comet's automated shopping agent, with a federal court ruling on the matter in March 2026. The dispute centers on whether an AI agent completing purchases on a user's behalf on Amazon's platform, without going through Amazon's own interfaces as intended, oversteps what's permitted — a genuinely unresolved category of question that other agentic browsers and AI shopping assistants are likely to run into as well, not a problem unique to Perplexity.

Comet vs Chrome: an honest verdict

Chrome remains the standard for developers and anyone who lives in DevTools — its extension ecosystem, raw performance and developer tooling are still unmatched for technical, code-heavy work, and nothing about Comet's pitch is trying to compete on that ground. Comet earns its place instead for a different kind of user: someone who reads a lot, writes a lot, and treats a browser as a research workspace rather than a graveyard of forgotten tabs. For that specific person — a researcher, analyst, writer, founder or student doing hours of daily reading and synthesis — reviewers consistently describe the combination of contextual tab awareness, Deep Research, and the always-present AI sidebar as a genuinely faster workflow than running Chrome alongside a separate AI chat tab.

Quick comparison: is Comet actually for you

Final thoughts

The gate that kept Comet behind a $200/month paywall for its first three months is gone, and the risk of actually trying it is close to zero — no subscription, no account, available on every major platform. The honest verdict from a wide range of 2026 reviews converges on the same place: it won't replace Chrome for everyone, and it shouldn't be your browser of choice for sensitive work until a full independent security audit exists. But for the specific person who spends hours a day reading, comparing and synthesizing information across many open tabs, it's a genuinely different, faster way to browse — worth downloading for three days on your actual normal workflow and judging from there, rather than from a features list alone.

For the broader context of what actually counts as an AI agent versus a chatbot with extra steps — directly relevant to evaluating Comet's more ambitious automated-task claims — our guide to how AI agents actually work covers that distinction in more depth.