Perplexity Comet 评测 2026 | Perplexity AI 浏览器：Chromium 内核、侧栏助手，2025-10 起全平台免费

Category分类

AI BrowserAI 浏览器

ai-browser

Open Source开源状态

专有（免费浏览器）

Free download on Windows, Mac, iOS, AndroidWindows/Mac/iOS/Android 免费下载

License许可证

免费 + Pro $20/月

Free; Pro $20/mo, Max $200/mo — prices per official site免费；Pro $20/月、Max $200/月，价格以官网为准

Tags标签

perplexity, perplexity-comet, ai-browser, chromium, agentic-browsing, research

6 tags total个标签

What Is Perplexity Comet?Perplexity Comet 是什么？

Perplexity Comet is a standalone web browser from Perplexity, launched in July 2025 and built on Chromium — so Chrome extensions and everyday websites work as usual. Its defining piece is the sidebar assistant: ask about the page you are reading, get a summary with visible sources, or hand it a small multi-step job across tabs. The habit it inherits from Perplexity search is answering with citations you can check, rather than asserting an answer.Perplexity Comet 是 Perplexity 2025 年 7 月推出的独立浏览器，基于 Chromium 内核——Chrome 扩展与日常网站照常用。它的核心是侧栏助手：问它正在读的页面、要一份带来源的总结，或把一个小型多步骤任务交给它跨标签去办。它继承了 Perplexity 搜索的习惯：回答带可核查的引用，而不是直接断言。

Comet launched as a $200/month Perplexity Max exclusive and went free worldwide on October 2, 2025 — now on Windows, Mac, iOS and Android. The free tier covers everyday AI-assisted browsing; Pro ($20/month) and Max ($200/month) raise usage limits and unlock autonomous Background Assistant tasks, and Comet Plus ($5/month) adds premium publisher content. Do not confuse the browser with the search engine: Perplexity search is a feature Comet uses, not the product itself. Prices per the official site.Comet 上线时是 $200/月 Max 专属，2025 年 10 月 2 日起全球免费，现覆盖 Windows、Mac、iOS、Android。免费档覆盖日常 AI 辅助浏览；Pro（$20/月）与 Max（$200/月）提高用量上限并解锁 Background Assistant 自主任务，Comet Plus（$5/月）加 premium 出版商内容。别把浏览器和搜索引擎搞混：Perplexity 搜索是 Comet 用的能力，不是产品本身。价格以官网为准。

⚠️ Two honest caveats. (1) Comet has had publicly disclosed security issues around how it handles content from webpages — an AI that reads every page has a prompt-injection surface, so do not let it act unsupervised on sensitive accounts. (2) Its shopping agent is the subject of an unresolved federal lawsuit from Amazon; a preliminary injunction against it was vacated on appeal in August 2026. See our Perplexity search review and the 2026 AI browser ranking for the wider picture.两个实话提醒。(1) Comet 曾公开披露过与网页内容处理相关的安全问题——一个读遍每个页面的 AI 自带提示注入攻击面，别让它在敏感账号上无人值守地操作。(2) 它的购物代理正面临 Amazon 的联邦诉讼（尚未了结；2026 年 8 月上诉推翻了针对它的初步禁令）。更全的图景见本站 Perplexity 搜索评测与 2026 AI 浏览器榜单。

Comet is the last standalone AI browser still standing after ChatGPT Atlas shut down in August 2026 — and free is the right price to try it at. Its real edge is not the agent tricks, which Chrome and Edge now bundle, but the research habit: cited answers while you read, in the browser where the tabs already are. The honest trade: the agent is genuinely useful for small delegated jobs, but the disclosed page-content security issues mean you should keep it away from banking, admin and high-value accounts until its defenses are proven. Verdict: if you research on the web all day, install it free and let the sidebar earn its place; pay Pro only when Background Assistant tasks become a daily habit.

Comet 是 ChatGPT Atlas 2026 年 8 月下线后硕果仅存的独立 AI 浏览器——而免费正是试它的正确价格。它真正的优势不是 Chrome、Edge 如今也捆绑的 Agent 花活，而是研究习惯：在你已经开着标签页的浏览器里，边读边给带引用的回答。实话代价：Agent 对小型委派任务确实好用，但已披露的页面内容安全问题意味着，在防御能力被证实之前，别让它碰银行、管理后台与高价值账号。结论：整天在网上做研究的人，免费装一个、让侧栏自己挣位置；只有 Background Assistant 任务变成日常习惯时再付 Pro。
— 中国吧 AI Tools Hub Editorial Team

Who Should Use Perplexity Comet?谁适合使用 Perplexity Comet？

✓ Good Fit For适合以下场景

Researchers who read and verify on the web all day整天在网上阅读、核查的研究者
Anyone who wants cited answers without leaving the page想不离开页面就拿到带引用回答的人
Users who delegate small web chores (summaries, comparisons, bookings prep)想把小型网上杂活（总结、比价、订票准备）交出去的人

✕ Not Ideal For不适合以下场景

Anyone who wants the agent unsupervised on banking or admin accounts想让 Agent 在银行、管理后台账号上无人值守操作的人
Users who want AI completely off their browser希望浏览器里完全没有 AI 的人
Teams needing managed enterprise browser controls — check the official site需要企业级浏览器管控的团队——以官网为准

Getting Started with Perplexity CometPerplexity Comet 快速开始

1. Download Comet free from perplexity.ai (Windows, Mac, iOS, Android) and sign in — no paywall for the browser itself去 perplexity.ai 免费下载 Comet（Windows/Mac/iOS/Android），登录即可——浏览器本身没有付费墙

2. Open the sidebar on any page and ask about it — summary first, then follow-ups with citations在任意页面打开侧栏直接问——先要总结，再追问带引用的细节

3. Delegate a small task (compare pages, prep a booking) and review each step before it acts on anything sensitive交一个小任务（比价、订票准备），敏感操作前逐项检查它的每一步

💡 Comet is a browser, not a search box: judge it by the sidebar and the agent, not by Perplexity search results. If you only need cited search, the free Perplexity search page is enough — see our Perplexity review.Comet 是浏览器、不是搜索框：评判它要看侧栏与 Agent，而不是 Perplexity 搜索结果。如果只要带引用的搜索，免费的 Perplexity 搜索页就够了——见本站 Perplexity 评测。

Key Features核心功能

🌐
Chromium CoreChromium 内核 — Chrome extensions and everyday sites work as usual; no relearning a new web.Chrome 扩展与日常网站照常用，不用重新学一个网络。
💬
Sidebar Assistant侧栏助手 — Summarizes the page you are on and answers questions about it, with sources you can check.总结当前页、回答关于它的问题，答案带可核查的来源。
📎
Cited Answers While Browsing浏览时带引用的回答 — The Perplexity research habit inside the browser: answers trace back to pages, not vibes.把 Perplexity 的研究习惯装进浏览器：答案能追溯到页面，不是凭感觉。
🤖
Agentic Tasks & Background AssistantAgent 任务与 Background Assistant — Multi-step jobs across tabs; autonomous background tasks on Pro and Max.跨标签多步骤任务；Pro 与 Max 可用自主后台任务。
📱
Free on All Four Platforms四平台全免费 — Windows, Mac, iOS and Android since October 2, 2025; Pro $20/mo, Max $200/mo for higher limits. Prices per official site.2025-10-02 起 Windows/Mac/iOS/Android 全免费；Pro $20/月、Max $200/月提上限。价格以官网为准。

Pros & Cons优缺点

✓ Pros优点

Free full browser on every major platform — zero-cost trial全平台免费完整浏览器——零成本试用
Cited answers while you read, not after you search边读边给带引用的回答，不用先搜再读
Real delegated browsing tasks, not just a chatbot sidebar真正能委派的浏览任务，不只是聊天侧栏
Chrome extension compatibility from the Chromium baseChromium 底子带来 Chrome 扩展兼容

✕ Cons缺点

Publicly disclosed page-content security issues — supervise sensitive tasks已公开披露的页面内容安全问题——敏感任务需人盯着
Shopping-agent lawsuit from Amazon still unresolvedAmazon 购物代理诉讼尚未了结
Serious agent autonomy sits behind Pro/Max paywalls真正重度的 Agent 自主能力在 Pro/Max 付费墙后
Not a general desktop agent — it lives inside the browser不是通用桌面 Agent——它只活在浏览器里

Use Cases应用场景

Popular ways people use Perplexity Comet.人们使用 Perplexity Comet 的常见场景：

🔍 Research Reading研究型阅读

Ask the sidebar to summarize a long report and cite the passages behind each claim before you quote them.让侧栏总结长报告，引用前先核对每条结论背后的原文段落。

🛒 Shopping & Task Prep购物与任务准备

Delegate comparisons and booking prep across tabs — review each step before checkout or payment.把比价、订票准备跨标签交出去——结算或付款前逐项检查。

🗂️ Multi-Tab Synthesis多标签综合

Ask about several open tabs together instead of copying passages between windows.一次问多个打开的标签页，不用来回复制段落。

📱 Mobile Continuity移动端连续浏览

The same assistant on iOS and Android keeps research moving off the desk.iOS 与 Android 上同一个助手，离开桌子研究也不断。

Similar AI Tools相似 AI 工具

If Comet does not fit, the wider field is covered in our 2026 AI browser ranking — Chrome with Gemini for the default path, Edge with Copilot for Windows/Office workflows, and Dia for Mac tab-aware chat. For cited search without a new browser, see Perplexity.如果 Comet 不合用，更全的选型见本站 2026 AI 浏览器榜单——默认路线选 Chrome+Gemini，Windows/Office 工作流选 Edge Copilot，Mac 标签感知聊天选 Dia。只要带引用的搜索、不想换浏览器，见 Perplexity。

Frequently Asked Questions常见问题

What is Perplexity Comet?Perplexity Comet 是什么？ ▼

Perplexity Comet is Perplexity's standalone AI browser, launched July 2025 and built on Chromium. A sidebar assistant summarizes the page you are on, answers questions about it with citations, and runs simple tasks across tabs. It is a browser product, not the Perplexity search website.Perplexity Comet 是 Perplexity 2025 年 7 月推出的独立 AI 浏览器，Chromium 内核。侧栏助手总结当前页、带引用地回答关于它的问题、跨标签执行简单任务。它是一个浏览器产品，不是 Perplexity 搜索网站。

Is Comet the same as Perplexity search?Comet 和 Perplexity 搜索是一回事吗？ ▼

No. Perplexity search (perplexity.ai) is a cited answer engine you visit in any browser; Comet is a full browser that uses Perplexity's engine in its sidebar and agent. If you only need cited search, you do not need to install Comet — see our Perplexity review.不是。Perplexity 搜索（perplexity.ai）是任何浏览器里都能访问的带引用问答引擎；Comet 是完整浏览器，在侧栏与 Agent 里用 Perplexity 引擎。如果只要带引用的搜索，不用装 Comet——见本站 Perplexity 评测。

Is Comet free?Comet 免费吗？ ▼

Yes. Comet was a $200/month Max exclusive at launch in July 2025 and became free worldwide on October 2, 2025, on Windows, Mac, iOS and Android. Pro ($20/month) and Max ($200/month) add higher usage limits and autonomous Background Assistant tasks; Comet Plus ($5/month) adds premium publisher content. Prices per the official site.免费。Comet 上线时是 $200/月 Max 专属，2025 年 10 月 2 日起全球免费，覆盖 Windows、Mac、iOS、Android。Pro（$20/月）与 Max（$200/月）提高用量上限并解锁 Background Assistant 自主任务；Comet Plus（$5/月）加 premium 出版商内容。价格以官网为准。

Is Comet safe for sensitive tasks?Comet 做敏感任务安全吗？ ▼

Use it with supervision. Comet has had publicly disclosed security issues around how it handles webpage content, and an AI that reads every page has a prompt-injection surface. Keep it away from banking, admin and high-value accounts, and review each step before it acts. Its shopping agent is also the subject of an unresolved Amazon lawsuit.需人盯着用。Comet 曾公开披露与网页内容处理相关的安全问题，读遍每个页面的 AI 自带提示注入攻击面。远离银行、管理后台与高价值账号，操作前逐项检查。它的购物代理还面临 Amazon 未了结的诉讼。

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Perplexity Comet – Perplexity 独立 AI 浏览器：Chromium 内核、侧栏助手，免费档覆盖日常浏览