Alternatives
Best Comet Alternatives in 2026
Comet is Perplexity's web browser with an AI assistant built into it. Instead of pasting a page into a chatbot you ask the Comet Assistant about whatever you have open, and it can act on the web for you: comparing how outlets cover a story, drafting a reply, turning a syllabus into a study plan. Perplexity's Comet site says it is “Available for Mac, Windows, iOS, and Android”. People still shop around, and usually for three reasons: the half that acts for you sits behind a paid Perplexity plan, every answer runs through one company's stack, and changing browsers is a bigger commitment than adding a sidebar. The five below split into browsers that do the same job differently and tools that let you keep the browser you have.
Why look for Comet alternatives?
Start with what Comet gets right, because for many readers the answer is to stay put.
- → Free to download on Mac, Windows, iOS and Android, the widest platform reach in our AI Browsers category
- → Perplexity's cited answers sit in the address bar, so research needs no copy and paste into a chatbot
- → The assistant reads the tabs you have open and can carry out small multi-step jobs, not only summaries
- → Perplexity's Comet FAQ commits to it: “We will always provide a free version of Perplexity for all users, and that will include Comet.”
And the reasons people still look elsewhere.
- → The agent is the paid part. Perplexity's own plan comparison lists Browser Agent (Comet Assistant) queries as “No” on the free Standard plan and as monthly limits on Pro and Max. A free Comet gets you the browser and Perplexity search; delegating work needs a subscription
- → Comet Plus is another layer on top. Perplexity announced it as “a $5 standalone subscription” for premium publisher content, included for Pro and Max subscribers
- → One stack for everything. Search and the assistant both run on Perplexity, which is the appeal if Perplexity is already your answer engine and a constraint if you would rather pick a model per task
- → Switching browsers is the real cost: profiles, extensions and saved passwords. Two of the five options below leave the browser you have where it is
- → Agentic browsing is early everywhere, Comet included. A web page can carry hidden instructions aimed at AI tools, so supervise multi-step runs and keep an agent away from banking and other sensitive logins
Dia
Best for Mac work that spans tabs and connected tools
Fellou
Best for handing long multi-step web tasks to an agent
Opera Neon
Best for giving the assistant you already pay for a real browser
Gemini in Chrome
Best for Chrome and Google apps without changing browsers
Sider
Best for several frontier models in one sidebar
How they compare to Comet
Each one wins on a different axis, and none scores higher than Comet does.
Dia · 4.2/5
Best for Mac work that spans tabs and connected tools.
Dia comes from The Browser Company of New York, the team behind Arc. The browser half is free and good on its own: profiles and tab groups, split view, an ad and tracking blocker, and cross-device sync. The AI half is not free. Dia's pricing page lists Better Browser at Free, Better Answers at $20 a month and Better Days at $100 a month, and the Better Browser feature list contains no AI at all. Better Answers adds Ask Dia on any page, chat with context from all your tools, and what Dia describes as models that will not store your data. Better Days adds six times more tasks and chats, the daily Morning Brief, reports, decks and recaps, and prep and follow-up for every meeting. New users get a 14-day free trial of Better Days with no credit card required. Against Comet the split is clean: Comet is free up to the agent, Dia is free up to the assistant, and each charges for that piece. Where Dia pulls ahead is context that is not on your screen, since it can draw on connected tools such as Slack, Notion, your calendar and Google Workspace. The hard limit is platform: Dia runs on macOS 14 or later on Apple silicon, where Comet covers all four major platforms.
Fellou · 3.9/5
Best for handing long multi-step web tasks to an agent.
Fellou calls itself an agentic browser: it takes a goal, plans the steps and works through them while you watch. Deep Action handles complex web and desktop jobs, Deep Search runs research across sources, Browser Use covers data scraping and form filling, and Computer Use extends the agent to files on your machine. It also builds an agentic memory from your browsing history and notes, and maintains Eko, an agent framework with public documentation. Everything is metered in Sparks. Fellou's pricing page lists Free at $0 a month with a 1,000 Spark new user bonus and 2 scheduled tasks, Plus at $19.0 a month with 2,000 Sparks, Pro at $39.9 a month with 5,000 Sparks and 5 scheduled tasks, and Ultra at $199.9 a month with unlimited Sparks and unlimited scheduled tasks, with annual billing saving 20 percent. Chat and Deep Search are included on every plan. The same page estimates roughly four tasks per 1,000 Sparks while warning that actual consumption varies significantly based on workflow complexity, and that is the sentence to price before you commit. Against Comet the trade is automation depth against predictability: Comet's assistant does small jobs inside a session, while Fellou is built for longer unattended runs you pay for by the unit. It is the lowest scoring option here at 3.9/5, largely because of that metering.
Opera Neon · 4.0/5
Best for giving the assistant you already pay for a real browser.
Opera Neon is Opera's agentic browser, and the download is free. The free Start tier is more generous than the name suggests: the full browser for Windows or macOS, Opera's built-in ad blocker and free VPN, basic Neon Chat, and the part worth switching for, a Browser CLI and MCP connector that let you plug a Claude or ChatGPT session straight into the browser at no extra cost. The Standard plan is $19.90 a month on a month to month subscription you can cancel any time, and Opera states the price includes applicable taxes. It unlocks Deep Research, Neon Do and Make, advanced Neon Chat, higher limits for skill cards and scheduled tasks, and full model choice across GPT, Claude Opus, Gemini, DeepSeek, Grok and image models. That selector is the clean difference from Comet, where the answers are Perplexity's. Opera still describes Neon as an experimental AI browser, and it is desktop only, Windows 11 on x64 or ARM and macOS 14 or newer, so it loses to Comet on reach. Note that our own Opera Neon review says the free plan has no Neon Chat; the live subscription page now lists basic Chat on the free tier, and the vendor page is the one we follow.
Gemini in Chrome · 4.2/5
Best for Chrome and Google apps without changing browsers.
Gemini in Chrome is Google's assistant built into Chrome itself, opened from the Gemini icon or a keyboard shortcut. It uses the context of your open tabs for key takeaways and comparisons, and it reaches across Google apps, so it can find a flight time in your inbox, check it in Google Flights and draft the update. Google's requirements for it are age, 13 or older or the applicable age in your country, a supported region and language, a signed-in Chrome on a Chromebook Plus, Mac or Windows computer, and administrator approval on a work or school account. No subscription appears in that list, and it is not available in Incognito mode. The agentic half is the exception: Google's auto browse help page requires Google AI Ultra or Google AI Pro on your personal account and that you be 18 or over and in the US, and says the release is gradual, so it may not reach you yet. That makes the comparison with Comet clear. If your working day is already Chrome, Gmail and Drive, this is the lowest friction option here and there is nothing to install. If you want an agent that carries out tasks and you do not hold a paid Google AI plan in the US, that half is closed to you today, and Comet is the more complete package.
Sider · 4.3/5
Best for several frontier models in one sidebar.
Sider is the entry here that is not a browser at all, and it is on the list because many people searching for a Comet alternative do not want to move house. It is an extension sidebar that opens on any webpage in Chrome, Edge or Safari: highlight text and ask it to explain, translate, summarize or rewrite, upload a PDF and ask questions about it, or send one prompt to several models and compare the answers. Its pricing page groups the product into Chat, Hand for automating tasks across real websites with a browser agent, Code for customizing how a site works, and Create for images, videos and slides. Plans are Nano at US$10 a month, Lite at US$25, Pro at US$50 and Max at US$100, all monthly, with yearly billing at 17 percent off; the tiers differ by monthly credits and by the cloud computer that runs Hand, from a temporary machine on Nano to a dedicated 4 vCPU instance on Max. Credits are the catch, the same one as Fellou's Sparks, since heavier models spend them faster. At 4.3/5 it is the highest scoring alternative here. Comet replaces your browser and gives you Perplexity's answers; Sider layers onto the browser you have and lets you choose which model answers.
Which one to pick
- → Opera Neon if you already pay for Claude or ChatGPT. Its free tier is the best deal here: a full browser that gives your existing agent hands through MCP and the CLI, with nothing more to buy
- → Gemini in Chrome if you live in Chrome and Google apps. It is the least disruptive option because it is not a switch at all, and no subscription appears in Google's requirements
- → Sider if you want several frontier models in one place and want your browser, extensions and profile left alone
- → Dia if you work on a Mac, the answers you need are scattered across tabs and team tools, and you will pay $20 a month for an assistant that reaches into them
- → Fellou if the job is unattended, repeatable web work: research runs, scraping, forms and schedules. Price the Sparks for one real task before you pick a tier
- → Stay on Comet if you want one free download covering Mac, Windows, iOS and Android, if Perplexity is already your search engine, and if an assistant that reads the tabs in front of you is the feature you were shopping for. At 4.5/5 it still scores higher than everything above
Other Comet alternatives worth knowing
Well-known options that don't yet have a full ToolChase review, so we give no score and no pricing for them here.
Microsoft Edge Copilot Mode ↗
Copilot is built into Edge and opens from an icon in the top right to summarize, compare or answer without leaving the page. Microsoft says it can analyze content across many open tabs at once, which is the closest thing to Comet's tab-aware assistant inside a browser many people already have.
SigmaOS ↗
SigmaOS is a macOS browser that organizes tabs into named Workspaces and treats them as tasks, with an in-browser AI assistant called Airis for summaries and follow-up questions about the page you are on.
Wavebox ↗
Wavebox is a Chromium browser built for people who juggle many web apps and accounts at once, with cookie-separated spaces in a left sidebar instead of endless tabs. It is the pick when the problem is account sprawl rather than research.