productivity

Best AI Browsers

Compare the best AI browsers in 2026 — Perplexity Comet, Chrome with Gemini, Dia, Microsoft Edge, Brave, Firefox, Opera Neon, Polar and the ChatGPT desktop app — with list pricing, platform support, the full prompt-injection disclosure record and a verdict for every use case.

Updated August 2026

Quick answer: The best AI browser for most people in August 2026 is Perplexity Comet, because it is free on all four major platforms, it is the only AI-native browser with a full mobile line-up, and its assistant is built on the strongest citation behaviour in consumer AI. If you do not want to change browser at all, Google Chrome with Gemini is the better answer, and for a large majority of people it is the only AI browsing they will ever use. On a Mac, Dia is the most polished daily driver, and it is now an Atlassian product aimed at knowledge work. The caveat that overrides all of the above: every agentic browser in this guide remains vulnerable to indirect prompt injection, OpenAI stated in December 2025 that the problem is “unlikely to ever” be fully solved, and you should not point an AI agent at a browser session that is logged into your bank.

This guide covers browsers where the AI can read the page you are on and, in most cases, act on it for you. That is a different job from answering a search query with sourced links, which is covered on best AI search engines, and a different job from a standalone agent that runs tasks outside the browser, which is covered on best AI agents. Several products here overlap all three, so we say explicitly which job each one actually does. Every price is list price in US dollars, taken from the vendor’s own page or announcement where one exists and dated. Where a figure comes from a third party rather than the vendor, we say so.

The current state of AI browsers: August 2026

Six things changed the category in the last twelve months, and four of them went against the standalone AI browser.

The biggest standalone AI browser was killed on 9 August 2026. OpenAI announced on 9 July 2026 that it was deprecating ChatGPT Atlas, and Atlas stopped working on 9 August 2026 (OpenAI Help Center). Atlas launched on 21 October 2025 and lasted 292 days. OpenAI gave users roughly a 30-day wind-down, said bookmarks and history would not transfer automatically, and warned that Atlas would stop receiving security updates. Any AI browser comparison that still lists Atlas as a live product is wrong.

OpenAI’s replacement is not a browser. Agentic browsing moved into the ChatGPT desktop app — which gained multiple tabs, downloads, improved navigation and account login, plus a separate cloud browser running on OpenAI’s own servers — and into a new ChatGPT Chrome extension that can read the page you are viewing (TechCrunch, 9 July 2026). TechCrunch reported the shutdown followed an internal push by then-CEO of applications Fidji Simo to cut back on “side quests”, the same programme under which OpenAI shut down its Sora video tool in March 2026. The strategic read is blunt: OpenAI concluded the browser is a feature, not a destination, and shipped its answer as an extension inside Chrome.

Microsoft reached the same conclusion three months earlier. Microsoft announced on 13 May 2026 that it was retiring Copilot Mode in Edge, ten months after launching it in July 2025, and moving multi-tab reasoning, Journeys, Voice, Vision, quizzes, podcasts and writing help into Edge itself on desktop and mobile. Copilot Actions was renamed Browse with Copilot and restricted to Microsoft 365 Premium subscribers in the United States with usage limits. Two of the three biggest AI companies have now abandoned the separate-AI-browser idea within a quarter of each other.

Google did the opposite of switching and won by default. Chrome shipped a Gemini side panel and auto browse on 28 January 2026, built on Gemini 3, with auto browse limited to a US preview for Google AI Pro and Ultra subscribers (Google). Auto browse fills forms, compares hotel and flight prices across dates, adds items to carts within a budget, and will use Google Password Manager to sign in if you grant permission. Full Gemini integration and auto browse reached Chrome on Android on 12 May 2026. Chrome also committed to Google’s Universal Commerce Protocol, the agentic-commerce standard Sundar Pichai announced at NRF on 11 January 2026 and co-developed with Shopify, Etsy, Wayfair and Target.

Google’s agent moved into your own browser in July. On 30 July 2026, Gemini Spark — Google’s personal agent — gained the ability to drive desktop Chrome on your own machine, using the accounts you are already signed into and the passwords saved in your browser, rather than a remote Google-controlled instance (9to5Google, 30 July 2026). Google says Spark uses it to schedule apartment viewings, compare flights and start bookings, that access requires explicit permission, and that Spark hands control back before payments. The capability is US-only at launch; the same day, Spark reached Google AI Pro subscribers in more than 160 additional countries. This is the single most consequential agentic browsing release of 2026 so far, and it is also the exact threat model described in the security section below.

The category is still tiny. No AI-native browser appears anywhere in StatCounter’s global top six for July 2026: Chrome 68.28 per cent, Safari 16.47 per cent, Edge 5.36 per cent, Firefox 3.3 per cent, Samsung Internet 2.06 per cent and Opera 1.89 per cent, which leaves under 3 per cent for every other browser on earth combined — AI-native and otherwise. eMarketer’s December 2025 assessment described agentic AI browsers as facing a “towering barrier to entry” and did not put a share figure on them at all, and no vendor in this guide publishes browser-level user numbers. Treat any specific AI browser market-share percentage you see quoted elsewhere with suspicion. The practical consequence is that the winner of the AI browser race so far is the browser you already have.

The four types of AI browser

Match the type to the job before comparing products. Most disappointment in this category comes from buying type three when you wanted type one.

Type two is where almost all real usage is. Type one is where almost all of the coverage is. Type three is where both OpenAI and Google have now placed their bets.

Best AI browsers ranked (August 2026)

Ranked by overall suitability for a general user today, weighting capability, platform coverage, price, security posture and how likely the product is to still exist in a year. Prices are list and monthly.

The eleven best AI browsers reviewed

1. Perplexity Comet — best AI browser overall

Price: Free. Comet Plus $5 per month for premium publisher content. Perplexity Pro $20 per month includes Comet Plus. Perplexity Max $200 per month adds Background Assistants Platforms: Windows, macOS, Android, iOS Engine: Chromium Key features: Sidebar assistant with cross-tab context, agentic actions on pages, voice mode, built-in ad blocking, Comet Plus publisher pool

Comet is the most complete AI-native browser you can install today, and the pricing history explains why it won the category. Perplexity launched Comet in July 2025 as a $200-per-month perk for Max subscribers, then dropped the paywall entirely on 2 October 2025, three months later. Android followed in November 2025 and iOS on 18 March 2026, completing the only full four-platform line-up in the AI-native category.

Why it wins: Reach and price. Every rival AI-native browser is either macOS-only (Dia), desktop-only (Opera Neon) or dead (Atlas). Comet is also the browser arm of the strongest citation behaviour in consumer AI — Perplexity recorded the lowest citation failure rate — 37 per cent — of the eight engines in the Tow Center for Digital Journalism’s March 2025 controlled study, which is the evidence behind its ranking on our best AI search engines page. Comet Plus is the only publisher revenue-share attached to a browser: Perplexity pays participating publishers 80 per cent of subscription revenue from an initial $42.5 million pool.

Limitations: Comet has been the single most-attacked product in this guide, and not because researchers dislike Perplexity — it is the one with enough users and enough agentic power to be worth attacking. Brave disclosed an indirect prompt injection in Comet in August 2025 and a screenshot-based injection in October 2025; Trail of Bits demonstrated four prompt injection techniques against it in February 2026 that could exfiltrate Gmail data; Zenity Labs disclosed zero-click calendar-invite attacks that read local files and took over a 1Password vault, fixed in February 2026; and Guardio trained a phishing page against it that beat it in under four minutes in March 2026. Perplexity has fixed each disclosed issue. The pattern is the point.

Best for: Anyone who wants a genuine AI browser on more than one device and does not want to pay for it.

2. Google Chrome with Gemini — best if you would rather not switch

Price: Free. Auto browse requires a Google AI Pro or Ultra subscription and is a US-only preview Platforms: Windows, macOS and Chromebook Plus from 28 January 2026; Android from 12 May 2026 Model: Gemini 3 Key features: Gemini side panel, auto browse agent, Gemini Spark control of local Chrome, Nano Banana image editing in-page, Connected Apps, Universal Commerce Protocol support

Chrome is the AI browser most people will actually use, because it is already installed. The 28 January 2026 release moved Gemini into a persistent side panel that follows you across tabs, added Nano Banana image editing without leaving the page — free to all Gemini in Chrome users — and connected Gemini to Gmail, Calendar, YouTube, Maps, Google Shopping and Google Flights (Google). Full Gemini integration and auto browse reached Chrome on Android on 12 May 2026.

Why it wins: Distribution, and the most capable agent in the category as of 30 July 2026, when Gemini Spark gained the ability to drive your local desktop Chrome using your existing logins and saved passwords (9to5Google). Auto browse is designed to pause and ask for explicit confirmation before purchases or social posts, Spark hands control back before payments, and Google published a separate architecture post on securing agentic browsing rather than leaving the question to reviewers. Google also has the only credible answer to agentic commerce at scale in the Universal Commerce Protocol, announced at NRF on 11 January 2026 with Shopify, Etsy, Wayfair and Target signed up.

Limitations: The good part is gated three ways at once. Auto browse is a preview, US-only, and paid — free Chrome users get the side panel, not the agent. Spark’s Chrome control is also US-only, though Spark itself reached AI Pro subscribers in more than 160 additional countries on the same day. Personal Intelligence in Chrome was still “in the coming months” as of Google’s own January announcement. And the deepest integration point — an agent using your saved passwords in your real browser profile — is precisely the capability every prompt-injection researcher in the section below has been warning about. Google’s own safeguard is a confirmation prompt, and confirmation prompts are the defence that Guardio’s research was designed to defeat.

Best for: The 65 to 70 per cent of the web already on Chrome, and anyone whose main requirement is that nothing about their browser changes. See Gemini for how the underlying assistant compares elsewhere.

3. Dia — best AI browser on a Mac

Price: Free. Dia Pro $20 per month for unlimited AI features, Skills and Memory Platforms: macOS 14 or later, Apple silicon only. A Windows build is in beta and slated for autumn 2026 Engine: Chromium Key features: Chat with your open tabs, Skills, Memory, Live Groups with Confluence support

Dia is The Browser Company’s second act, and the successor to Arc in every sense that matters. Arc was sunset in May 2025 and has been in maintenance mode since — it still launches and still gets security patches, but has had no new features for over a year. Dia was released on 11 June 2025 and introduced the $20 per month Dia Pro tier on 6 August 2025.

Why it matters: Dia is now an Atlassian product. Atlassian announced its agreement to acquire The Browser Company for $610 million in cash on 4 September 2025 (Atlassian; CNBC), and the deal has since closed. The stated goal is a browser built for enterprise knowledge workers, and the direction is already visible in the product: Confluence support arrived in Live Groups in May 2026. If your team runs on Jira and Confluence, Dia is the only browser in this guide with a structural reason to integrate with them.

Limitations: Platform exclusion is severe. Apple silicon Macs on macOS 14 or later, and nothing else — no Intel Macs, no Windows, no Linux, no mobile. Windows has been “coming” since 2025; the current commitment is autumn 2026 and it is in beta with hundreds of testers. Dia itself has been openly available on Mac with no invite since 9 October 2025 — the waitlist that still appears in older write-ups is the Windows one. There is a real strategic risk that an enterprise pivot leaves consumer Dia behind, a concern raised repeatedly in the press since the acquisition closed.

Best for: Mac-only individuals and teams doing document-heavy knowledge work, especially inside the Atlassian stack.

4. Microsoft Edge — best for Windows and Microsoft 365

Price: Free. Browse with Copilot requires Microsoft 365 Premium at $19.99 per month and is US-only with usage limits Platforms: Windows, macOS, Android, iOS Model: Copilot, built on OpenAI models Key features: Multi-tab reasoning, Journeys, Voice, Vision, Browse with Copilot, Scareware Blocker

Edge is the browser that ran the AI-browser experiment in public and then absorbed it. Copilot Mode launched in July 2025 as an opt-in experiment, and Microsoft retired it on 13 May 2026, folding multi-tab reasoning, Journeys, Voice, Vision, quizzes, podcasts and writing help into standard Edge on desktop and mobile. Saved Copilot Mode conversations were archived to users’ Microsoft account chat history.

Why it wins: Nothing else connects browsing to Outlook, Word, Excel, Teams, OneDrive and SharePoint through Microsoft Graph. Journeys, which reassembles past browsing into resumable thematic blocks on the new tab page, is the single most underrated feature in this guide and has no direct equivalent elsewhere. Edge also ships genuinely useful non-AI security, including an on-device Scareware Blocker that detects scam pages from what is on screen.

Limitations: The pricing story is messy. Microsoft retired the standalone $20 Copilot Pro tier in late 2025 and supported existing subscribers only until 1 August 2026, so the consumer route to the best Edge AI is now Microsoft 365 Premium at $19.99 per month, and Browse with Copilot on top of that is still US-only and metered. Copilot Credits, the metered currency introduced on 1 September 2025 for advanced agent actions, make forecasting cost harder than a flat subscription. Anyone comparing Edge across articles written before May 2026 will read about a “Copilot Mode” that no longer exists.

Best for: Windows users, and any organisation already paying for Microsoft 365. See Microsoft Copilot for the assistant itself.

5. Brave — best security posture in agentic browsing

Price: Free, including Leo with no account required. Leo Premium is a paid tier; Brave does not publish the price on the pages we could verify, and third-party reviews put it around $15 per month Platforms: Windows, macOS, Linux, Android, iOS Models: AI browsing uses Claude Sonnet, which Brave names in its own announcement; third-party reviews report the free Leo tier routing to Llama, Qwen, Claude Haiku and GLM models, which Brave does not list on the pages we could verify Key features: Leo assistant, Skills, opt-in agentic browsing in an isolated profile, independent search index, no training on user data

Brave is the only browser in this guide whose AI strategy is legibly shaped by its own security research. Brave’s team disclosed the original Comet prompt injection in August 2025, the screenshot attacks in October 2025 and the Opera Neon flaw in October 2025, then shipped its own agentic browsing on 10 December 2025 behind an opt-in feature flag, migrating it from Nightly to all release channels by May 2026 (Brave).

Why it wins: The architecture is the argument. AI browsing runs in a brand-new isolated profile, so cookies, logged-in state and site data never cross from your real session. A second “alignment checker” model reviews the task model’s proposed actions against the user’s stated intent and is deliberately firewalled from raw page content. The agent cannot touch internal brave:// pages, non-HTTPS pages, the Chrome Web Store or Safe Browsing-flagged sites, and cannot delete its own session logs. Brave also states plainly that AI browsing never trains on your data, and Brave reported passing 100 million monthly active users in September 2025 (Brave), so this is not a niche experiment.

Limitations: You have to go and switch it on. Agentic browsing sits behind a brave://flags entry, is off by default, and must be manually invoked every time — deliberate friction that makes Brave the least convenient agentic browser here. Brave itself says the safeguards “do not eliminate risks such as prompt injection”, and its June 2026 research concluded that indirect prompt injection remains unsolved for cloud and on-device models alike.

Best for: People who want agentic browsing but want the blast radius contained, and anyone who reads the security section below and decides they still want to try it.

6. ChatGPT desktop app and Chrome extension — best if your work already lives in ChatGPT

Price: Free tier; ChatGPT Plus $20 per month; Pro from $100 per month Platforms: Windows and macOS for the desktop app; Chrome for the extension Key features: In-app browsing with tabs, downloads and account login; a separate cloud browser for agent tasks; page-aware Chrome extension

This is not a browser, and OpenAI’s decision to stop pretending otherwise is the most important thing that happened in this category. Since Atlas stopped working on 9 August 2026, OpenAI’s browsing story is two surfaces: a beefed-up ChatGPT desktop app that can browse, log in and download without leaving ChatGPT, plus a cloud browser running on OpenAI’s servers where agents complete tasks remotely, and a Chrome extension that reads the page you are on so you can ask about it, summarise it or hand off a longer task.

Why it matters: It removes the switching cost entirely. You keep Chrome, your extensions, your profiles and your password manager, and get a page-aware assistant on top. TechCrunch positioned the extension as a direct competitor to Google’s Gemini side panel, which is the right frame — this is a panel war now, not a browser war.

Limitations: You do not get an AI-native interface, cross-tab reasoning of the kind Comet and Dia offer, or a browser you can set as default. Anyone who adopted Atlas has now been migrated twice in under a year, and bookmarks and history did not transfer automatically. If product stability matters to you, that history is data.

Best for: ChatGPT Plus and Pro subscribers who want browsing help without adopting anything new. See ChatGPT for the assistant in full.

7. Firefox — best for having AI in the browser and being able to switch it all off

Price: Free Platforms: Windows, macOS, Linux, Android, iOS Key features: AI-enhanced tab grouping, link previews, sidebar chatbot, AI-assisted translation, alt text in PDFs — and a single control that turns all of it off

Firefox belongs in this guide because it is the only browser here that treats AI as something you should be able to refuse. Mozilla CEO Anthony Enzor-DeMeo signalled in December 2025 that Firefox would lean heavily into AI, the community reaction was severe, and Mozilla responded by shipping an AI kill switch in Firefox 148 on 24 February 2026 — every AI feature can be disabled individually or all at once.

Why it matters: It is the clearest counter-position in the category, and it is the only mainstream browser where the answer to “can I opt out” is unambiguously yes. Firefox is also the last significant non-Chromium browser on desktop, which matters if you care about engine diversity for its own sake.

Limitations: Firefox has no agent. Nothing here acts on websites for you, so if you came to this guide for agentic browsing, Firefox is not the answer — it is the answer to the opposite question. Firefox held 3.3 per cent of global browser share in July 2026 per StatCounter.

Best for: Privacy-minded users who want a mainstream, non-Chromium browser with AI that is genuinely optional.

8. Opera Neon — best for heavy agentic automation, if you will pay for it

Price: $19.90 per month. There is no free tier Platforms: Windows and macOS Models: Gemini 3 Pro and GPT-5.1 included in the subscription Key features: Task agents, ODRA deep research agent, one-minute research mode, in-browser app building

Opera Neon is the most aggressive product in the category and the only one that charges from the first minute. Opera opened public access on 11 December 2025, removing the waitlist. Neon is positioned for AI power users rather than general browsing: it runs agents that carry out multi-step tasks and can generate small web apps, and its ODRA agent produces cited deep-research reports.

Why it matters: It is the clearest test of whether anyone will pay a browser subscription. At $19.90 per month it is priced against Perplexity Pro and Dia Pro while giving away frontier model access that would otherwise cost the same on its own.

Limitations: Charging $19.90 in a category where the best product is free is a hard sell, and the model line-up is the tell — GPT-5.1 was current when Neon went public in December 2025 and is now well behind. Brave disclosed a prompt injection flaw in Neon on 31 October 2025 in which malicious instructions hidden in non-rendered markup were invisible to users but fully readable by the assistant. Desktop only, with no mobile client.

Best for: Automation-heavy users who have already decided an agentic browser is worth a subscription line item.

9. Safari on macOS 27 — best for Apple users who want help, not an agent

Price: Free with the operating system Platforms: macOS 27, iOS 27 Key features: Automatic tab grouping by topic, natural-language extension creation, Notify Me page monitoring, automated password updates

Apple announced Safari’s AI features at WWDC on 8 June 2026 as part of macOS 27 Golden Gate: Safari can analyse open pages, group tabs into topics automatically, build custom extensions from a plain-English description, watch a page and alert you when it changes, and update weak passwords for you.

The strategic caveat matters more than the feature list. Apple has reportedly paused the larger Safari AI overhaul — the plan that would have put an AI answer engine inside Safari and Spotlight — and consolidated its AI strategy around a Gemini-powered Siri instead. Multiple outlets reported this in early July 2026; Apple has not published a statement to that effect, so treat it as well-sourced reporting rather than confirmed roadmap.

Limitations: Safari has no agent. Nothing in the macOS 27 feature set acts on websites on your behalf, which is either the whole point or a dealbreaker depending on what you came for. The features also require the current OS, which excludes anyone who has not upgraded.

Best for: Mac and iPhone users who want tab and page assistance built in, and who consider the absence of an agent a feature.

10. Polar — best for long-running, repeatable knowledge work

Price: Free tier with daily credits; paid plans from $20 per month Platforms: macOS only Engine: Chromium Key features: Agents that complete long multi-step jobs inside sites you are already signed into

Polar is the newest product in this guide and the most credibly differentiated newcomer. It launched publicly on 29 July 2026 alongside a $5.7 million seed round led by Madrona, with GitHub’s former CEO Thomas Dohmke and Modal founder Erik Bernhardsson among the angels (TechCrunch, 29 July 2026). Chief executive Kevin Jiang previously worked on Comet at Perplexity, which is the clearest signal available of what the second wave of AI browsers thinks the first wave got wrong.

Why it matters: Polar explicitly targets recurring knowledge-work tasks rather than one-off consumer errands like booking travel, and it is built for duration — the company says it has run tasks for over fifteen hours without intervention. Where Comet and Dia stop at answering questions and summarising tabs, Polar is trying to own the job that takes an afternoon.

Limitations: It launched on 29 July 2026, is macOS-only, and is venture-funded at seed stage, so it fails the “will this still exist next year” test that Atlas and Arc taught us to apply. There is no independent security research on it yet, which given the disclosure record in this category should be read as absence of evidence rather than evidence of absence.

Best for: Mac users with a genuinely repetitive multi-step web workflow, who are comfortable being early.

11. Fellou — best for seeing the plan before the agent runs it

Price: Free tier available. We have not been able to verify current paid pricing from Fellou’s own pages, so no figure is published here Platforms: Windows, macOS Key features: Visible, editable workflow plan before execution; step-level intervention; works across authenticated sessions

Fellou’s differentiator is transparency: it shows you the workflow it intends to run, lets you edit it, and lets you intervene at any step. For anyone whose objection to agentic browsing is “I do not know what it is about to do”, that is the correct product answer, and no larger vendor offers it as directly.

Limitations: Brave’s October 2025 research found that simply asking Fellou to navigate to a page caused it to send that page’s content to its LLM in a way that let visible page text override the user’s intent — no explicit summarisation step required. Brave reported this to Fellou on 20 August 2025 and disclosed it publicly on 21 October 2025. Fellou also handles logged-in sessions on Salesforce, LinkedIn and Reddit, which is useful and is precisely the risk surface that finding describes.

Best for: Users running repeatable multi-step jobs who want to inspect the plan first — with the caveat above read in full.

Feature comparison: the full matrix

“None disclosed to date” means we found no published vulnerability disclosure for that product, not that it is safe. The security section below explains why that distinction matters.

Pricing comparison: what you will actually pay

The pricing takeaway: the best AI browser is free, the second best is free, and the third best is free at the tier most people need. Every paid tier in this table is buying either an agent (Chrome, Edge, Opera Neon), higher limits (Dia Pro, Leo Premium), or a bundle you may already own (Microsoft 365 Premium). Nobody has yet demonstrated that people will pay for an AI browser as a browser.

The security problem nobody has solved

This is the section that should decide your choice, and it is missing from most AI browser comparisons.

The mechanism. Indirect prompt injection means an attacker hides instructions in content your agent reads — a web page, a calendar invite, an image, a Reddit comment — and the model processes those instructions through the same pipeline it uses for your commands, with no reliable way to tell them apart. Because the agent runs with your authenticated privileges, the same-origin policy that has protected the web for 30 years stops applying. Brave put it plainly: if you are signed into your bank in the same browser, simply summarising a Reddit post could result in an attacker moving money.

The disclosure record. Every one of these was responsibly disclosed and, where stated, fixed.

The finding that should worry you most is Guardio’s, because it changes the economics. Traditional scams have to fool a human one at a time. Guardio intercepted what it calls “agentic blabbering” — the agent narrating what it sees, believes and plans — fed that to a generative adversarial network, and iterated a scam page until the browser walked into it reliably. Once a page is tuned against a given agent, it works against every user of that agent, on first contact.

The direction of travel is towards more exposure, not less. Google’s Gemini Spark update of 30 July 2026 moved the agent out of a sandboxed remote browser and into your own desktop Chrome, with your logins and your saved passwords. That is a large usability win and a large increase in blast radius at the same time, and it lands four months after Guardio demonstrated that an attacker can train a page offline against a specific agent until it works on first contact.

What to do about it. Do not enable agentic mode in a browser profile that is logged into banking, email or a password manager. Prefer designs that isolate agent sessions from your real profile, which today means Brave’s separate-profile model or OpenAI’s server-side cloud browser rather than Chrome auto browse or Gemini Spark. Treat confirmation prompts as the last line of defence, not the first — they are the specific control Guardio’s method was built to get past. Turn off any setting that lets the agent use your password manager unattended. And note the asymmetry in the table above: Comet dominates it because Comet has been the biggest agentic target, not because the others are demonstrably safer.

Discontinued, frozen or renamed: what not to install

Atlas ran for 292 days. Copilot Mode ran for ten months. Arc was retired by its own maker in favour of a successor that then sold to Atlassian. In a category this young, “will this product still exist next year” is a legitimate selection criterion, and it favours browsers attached to a business that would exist anyway.

Best AI browser for each use case

For most people

Winner: Perplexity Comet, free

It is free, it is on all four platforms, and it is the only AI-native browser with both a real mobile client and a company whose core product is retrieval. Enable the agent deliberately, not by default. Alternative: Chrome with Gemini if you do not want to move bookmarks.

For not switching browser

Winner: Google Chrome with Gemini, free

The side panel, Connected Apps and in-page Nano Banana editing are free to all Gemini in Chrome users on Windows, macOS and ChromeOS. Auto browse costs a Google AI Pro or Ultra subscription and is a US-only preview, so budget for the free tier and treat the agent as a bonus.

For Mac knowledge work

Winner: Dia, free, or Dia Pro at $20

The most polished AI-native experience on Apple silicon, now owned by Atlassian and heading towards deep Jira and Confluence integration. Requires macOS 14 or later on Apple silicon; Windows is beta with an autumn 2026 target.

For Windows and Microsoft 365 users

Winner: Microsoft Edge, free

Multi-tab reasoning, Journeys, Voice and Vision now ship in standard Edge, and nothing else reaches into Outlook, Teams, SharePoint and OneDrive through Microsoft Graph. Browse with Copilot needs Microsoft 365 Premium at $19.99 and is US-only.

For security-conscious users who still want an agent

Winner: Brave, free

The only browser here that runs its agent in a fully isolated profile with a second model checking intent, blocks the agent from internal pages and flagged sites, and states that it never trains on your data. You must enable it via brave://flags and invoke it manually every time.

For maximum privacy with no agent at all

Winner: Brave with Leo, or Safari on macOS 27

Leo needs no account, stores no conversations on Brave’s servers and trains on nothing. Safari’s macOS 27 features are all read-and-organise rather than act-on-your-behalf, which removes the injection risk that comes with agency.

For turning AI off completely

Winner: Firefox, free

Firefox 148 shipped a kill switch on 24 February 2026 that disables every AI feature individually or all at once, after a community backlash against Mozilla’s AI direction. It is the only mainstream browser where opting out is a supported, documented setting rather than a hunt through flags.

For long, repeatable knowledge work

Winner: Polar, free tier or from $20

Built by a former Comet engineer specifically for recurring multi-step work rather than one-off errands, and designed to run for hours rather than minutes. macOS only, launched 29 July 2026, and unproven — treat it as a bet, not a default.

For heavy consumer automation

Winner: Opera Neon at $19.90, with Fellou as the free-tier alternative

Neon is built for people delegating multi-step work and bundles Gemini 3 Pro and GPT-5.1. Fellou is the better choice if you want to inspect and edit the plan before it executes, subject to the Brave disclosure noted above.

For people already paying for ChatGPT

Winner: the ChatGPT desktop app plus the Chrome extension, included

Both are included with your existing plan and neither requires you to change browser. This is now OpenAI’s whole browsing strategy, so it is also the one least likely to be discontinued out from under you.

For anyone logged into a bank in the same browser

Winner: none of them, in agentic mode

Use the AI for reading, summarising and comparing, and do the acting yourself. Every product in this guide inherits your authenticated session when it acts, and the disclosure record above shows what that means in practice.

Frequently asked questions

What is the best AI browser in 2026?

Perplexity Comet is the best AI browser for most people in 2026. It is free, it runs on Windows, macOS, Android and iOS, and it is the only AI-native browser with a complete mobile line-up after ChatGPT Atlas shut down on 9 August 2026. If you would rather not change browser, Google Chrome with Gemini is the better answer, and on an Apple silicon Mac, Dia is the more polished product.

What happened to the ChatGPT Atlas browser?

OpenAI deprecated ChatGPT Atlas and it stopped working on 9 August 2026, 292 days after launching on 21 October 2025. OpenAI announced the decision on 9 July 2026, gave users about 30 days to export bookmarks and saved pages, and moved browser-based agentic work into the ChatGPT desktop app and a new ChatGPT Chrome extension. Bookmarks, history and open tabs did not transfer automatically, and OpenAI warned that Atlas would stop receiving security updates.

Is Perplexity Comet free?

Yes. Perplexity removed Comet’s paywall on 2 October 2025 and the browser is free on Windows, macOS, Android and iOS. Comet launched in July 2025 as a $200-per-month perk for Perplexity Max subscribers. Two optional paid add-ons exist: Comet Plus at $5 per month for premium publisher content, and Perplexity Pro at $20 per month, which includes Comet Plus.

Are AI browsers safe to use?

Not in agentic mode, if you are logged into sensitive accounts in the same browser profile. Every agentic browser is vulnerable to indirect prompt injection, where hidden instructions in a page, image or calendar invite are executed by the agent with your own logged-in privileges. OpenAI stated in December 2025 that these vulnerabilities are “unlikely to ever” be fully resolved. Reading, summarising and comparing are low-risk uses; letting an agent act on authenticated sites is not.

Which AI browser has the best security design?

Brave. Its agentic browsing runs in a brand-new isolated profile so cookies and logged-in state never cross from your real session, a second “alignment checker” model reviews proposed actions against your stated intent, the agent cannot reach internal pages or Safe Browsing-flagged sites, and Brave states it never trains on your data. Brave’s own security team disclosed the original prompt injection flaws in Comet, Fellou and Opera Neon before shipping its own agent behind an opt-in flag.

Do I need to switch browsers to get AI features?

No, and most people should not. Chrome, Edge, Brave and Safari all now ship AI in the browser you already use, and OpenAI’s answer is a Chrome extension rather than a browser at all. Switching costs you bookmarks, extensions, saved passwords and profile sync, and buys you an AI-native interface that only Perplexity Comet and Dia currently do better than the incumbents.

Is Dia available on Windows?

Not yet. Dia runs only on macOS 14 or later with Apple silicon. A Windows build has been in active beta with hundreds of testers and The Browser Company has said it is slated to launch in autumn 2026. There is no Intel Mac, Linux or mobile version.

What happened to the Arc browser?

The Browser Company stopped active development on Arc in May 2025 to focus on Dia. Arc still launches, still works and still receives security patches, but has had no new features since. The Browser Company was then acquired by Atlassian for $610 million under an agreement announced on 4 September 2025, and the team now works on Dia as an enterprise browser for knowledge workers.

Is Edge Copilot Mode still available?

No. Microsoft retired Copilot Mode on 13 May 2026, ten months after launching it in July 2025, and moved its features — multi-tab reasoning, Journeys, Voice, Vision, quizzes, podcasts and writing help — into standard Edge on desktop and mobile. Saved Copilot Mode conversations were archived to your Microsoft account chat history. Copilot Actions was renamed Browse with Copilot and now requires Microsoft 365 Premium at $19.99 per month in the United States.

How much of the browser market do AI browsers actually have?

Very little, and nobody publishes a reliable figure. No AI-native browser appears in StatCounter’s global top six for July 2026 — Chrome 68.28 per cent, Safari 16.47 per cent, Edge 5.36 per cent, Firefox 3.3 per cent, Samsung Internet 2.06 per cent, Opera 1.89 per cent — which leaves under 3 per cent for every remaining browser combined, AI-native and otherwise. eMarketer described agentic AI browsers in December 2025 as facing a “towering barrier to entry” without attaching a share figure. The AI browsing most people will use in 2026 is a feature inside Chrome or Edge, not a separate product.

Which AI browser is best for research?

Perplexity Comet, because the assistant is built on the retrieval engine with the lowest citation failure rate — 37 per cent — measured in the Tow Center for Digital Journalism’s March 2025 study of AI search. Opera Neon’s ODRA agent produces cited deep-research reports and is a reasonable paid alternative at $19.90 per month. For research workflows that are not browser-bound, see best AI for research.

What is Gemini Spark’s Chrome auto browse?

Gemini Spark is Google’s personal agent, and since 30 July 2026 it can drive desktop Chrome on your own machine, using the accounts you are already signed into and the passwords saved in your browser. Google says it uses this to schedule apartment viewings, compare flight options and begin bookings, that it requires your explicit permission, and that it hands control back before payments. The capability launched in the United States only. It is the most capable consumer browser agent available today and also the one with the largest blast radius if a page manages to inject instructions into it.

Can an AI browser buy things for me?

Yes, and this is where you should be most careful. Chrome’s auto browse can add items to a cart within a budget, apply discount codes, and use Google Password Manager to sign in if you permit it, though it is designed to pause and ask for confirmation before a purchase. Chrome also supports Google’s Universal Commerce Protocol, an agentic-commerce standard co-developed with Shopify, Etsy, Wayfair and Target. Given the prompt-injection record, confirm every purchase manually rather than trusting the agent’s own judgement about which actions are sensitive.

How to choose in August 2026

The AI browser category has already had its consolidation, and it happened faster than anyone expected. Two of the three biggest AI companies shut down or absorbed their separate AI browsers within three months of each other, the third put its agent inside the browser you already run, and the winner so far is the browser you already had.

• Best overall: Perplexity Comet, free on all four platforms.
• Best if you will not switch: Chrome with Gemini, free, with a paid US-only agent and Gemini Spark control of local Chrome since 30 July 2026.
• Best on a Mac: Dia, free, or Dia Pro at $20 per month.
• Best for Windows and Microsoft 365: Edge, free, with Browse with Copilot at $19.99.
• Best security design: Brave, with agentic browsing in an isolated profile behind a flag.
• Best if you already pay for ChatGPT: the desktop app plus the Chrome extension, included.
• Best for opting out of AI: Firefox, with a single kill switch since 24 February 2026.
• Best for long repeatable jobs: Polar, free tier or from $20, macOS only and launched 29 July 2026.
• Best for paid consumer automation: Opera Neon at $19.90 per month.
• Avoid: ChatGPT Atlas and Arc are both dead, and Edge “Copilot Mode” no longer exists as a product.

Pick on platform coverage first, price second and security posture third — and remember that the difference between a useful AI browser and a dangerous one is usually a setting, not a brand. Use the assistant to read the web, and think hard before you let it act on it.

Prices, availability and feature gating are current as of 17 August 2026 and change frequently in this category. Where a vendor does not publish a price we say so rather than repeating a third-party estimate. Security disclosures listed are those published by the researchers named; absence of a disclosure is not evidence of safety.