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Side-by-side comparison ยท AI Browsers & Agents

Brave vs Opera Neon vs Comet

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Brave

3.9

From $14.99/mo

Opera Neon

3.4

From $19.90/mo

Comet

3.9

From $5/mo

Comparing 3 tools, the maximum.

At a glance

Best value

Pick it if: Business owners who want an AI helper in the browser but don't want their browsing or chats stored or used for training.

Pick it if: Business owners and power users who want an AI that does web tasks for them and are happy to pay for access to several top models in one place.

Easiest to use

Pick it if: Anyone who researches, compares or reads a lot online and wants an AI helper in the browser without paying for it.

Overview

AttributeBraveOpera NeonComet
In one lineA privacy browser with Leo, a free AI assistant that doesn't keep your chats.Opera's agentic AI browser that browses, researches and builds things for you.Perplexity's free web browser with an assistant that reads your tabs and does tasks.
Pricing modelFreemiumFreemiumFreemium
Starting price$14.99/mo$19.90/mo$5/mo
Free plan Yes Yes Yes
Works with Claude Code No Yes No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeBraveOpera NeonComet
Overall rating3.93.43.9
Ease of useHow quickly someone non-technical gets value from it.
4.0
3.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
3.5
4.5
4.0
Output qualityHow good the results are before you fix them.
3.5
3.5
3.5
Value for moneyWhat you get for the price, including the free plan.
4.5
3.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
3.0
3.5

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeBraveOpera NeonComet
Access & platform
Free plan Yes Yes Yes
Mobile app Yes No Yes
Desktop app Yes Yes Yes
Browser extension No No Yes
API access No Yes No
Teams & business
Team workspace No No Yes
Enterprise plan or SSO No No Yes
Connects to other apps No Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images No Yes No
Makes video No Yes No
Writes code No Yes No
Runs agents or automations Yes Yes Yes
Learns your brand or style No No No
Works in many languages Yes Yes Yes
Capabilities score7/ 1711/ 1711/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeBraveOpera NeonComet
Plans

FreeOur pick

Free

Everyday summaries and questions while you browse.

Free

Free

Trying Neon, or letting your own AI agent use a browser.

FreeOur pick

Free

Everyday browsing with an assistant for summaries and questions.

Leo Premium

$14.99/mo, or $149.99/yr

Daily users who want better answers and fewer limits.

StandardOur pick

$19.90/mo

Anyone who wants Neon's agents to do web tasks for them.

Comet Plus

$5/mo

Readers who want partner publishers' paywalled articles.

Perplexity Pro

$20/mo, or $200/yr

Anyone who wants the agent to do tasks for them.

Perplexity Max

$200/mo, or $2,000/yr

Heavy users running many tasks in the background.

Which plan to pickStart free. If you hit the daily limits or the answers feel thin, Premium at $14.99 a month gets you Claude-level quality inside a private browser. If you already pay for ChatGPT or Claude, you may not need Premium at all, since those work in any browser.If you're choosing Neon, it's for the agents, so Standard at $19.90 a month is the plan that matters. Month to month, so try it for one month on a real job. The free plan's chat is more basic than the free AI in Opera One, so only stay on Free if you want to plug in your own Claude or ChatGPT.Use it free: the sidebar assistant alone is worth having, and most people never need more. Pro makes sense if you want Perplexity's research tools anyway, but don't buy it just for the browser agent, since Pro's credits are a one-off bundle. Nobody needs Max just for the browser.

Key features

AttributeBraveOpera NeonComet
Standout features
  • Leo in the sidebar
  • Private by design
  • Choice of models
  • Bring your own model
  • AI browsing (early test)
  • Ask Brave
  • Neon Do
  • Neon Make
  • Deep research
  • Tasks and Cards
  • Top models in one place
  • Bring your own AI
  • Comet Assistant
  • Browser control
  • Work mode
  • Works like Chrome
  • On every device
  • Comet Plus

Pros and cons

AttributeBraveOpera NeonComet
Pros
  • Free Leo with no account and no chat history kept
  • Open source, with ads and trackers blocked by default
  • Premium includes Claude models for $14.99 a month
  • Can run your own or a local model
  • On Mac, Windows, Linux, Android and iPhone
  • One of the strongest browser agents in reviews
  • Several top models from OpenAI, Anthropic and Google in one subscription
  • Free plan lets your own AI drive the browser
  • Tasks keep each project's tabs and chat together
  • Month to month, no annual lock-in
  • Free on Mac, Windows, Android and iPhone
  • Feels like Chrome, with your extensions and bookmarks
  • Answers about the page come with sources you can check
  • Comet Plus is included with Perplexity Pro and Max
  • Good at summaries and comparing tabs
Cons
  • The agent is an opt-in experiment hidden in brave://flags
  • Free models give weaker answers than Comet or ChatGPT
  • Reviewers report the odd confidently wrong answer
  • No connections to Gmail, Slack or calendars like Dia
  • Crypto wallet and rewards extras some people find off-putting
  • $19.90 a month when Comet and Opera One have free AI sidebars
  • Three separate modes (Chat, Do, Make) confuse new users
  • Windows and Mac only, no mobile app
  • Still labelled experimental by Opera
  • Prompt injection risk, as with every AI browser agent
  • Repeated prompt-injection attacks found by researchers in 2025 and 2026; risky with logged-in accounts
  • The agent is slow and sometimes gets stuck or gives up halfway
  • Browser control moved behind Computer credits in September 2026, so Pro users lost an included feature
  • Paying users complain of quiet limits, model downgrades and features being removed
  • Amazon sued over its shopping agent, and the case is still running

Who each one is for

AttributeBraveOpera NeonComet
Best for
  • Summarising pages, PDFs and Google Docs privately
  • Quick answers with Brave Search sources
  • People who want ad and tracker blocking built in
  • Running your own or a local AI model in the browser
  • Handing off web chores like bookings and form filling
  • Deep research reports on a market or competitor
  • Building quick reports, pages or images from research
  • Letting Claude or ChatGPT use a real browser (free plan)
  • Summarising long pages, PDFs and videos
  • Comparing products or suppliers across tabs
  • Quick research while you browse
  • Hands-off form filling and bookings (Pro and Max)
You'll find it used by
  • Privacy-minded owners
  • Researchers
  • Developers
  • Anyone leaving Chrome
  • Founders
  • Marketers
  • Researchers
  • Power users
  • Researchers
  • Marketers
  • Students
  • Founders

Questions people ask

Which is better, Brave, Opera Neon or Comet?

They tie on our overall rating (Brave 3.9/5, Opera Neon 3.4/5 and Comet 3.9/5). Brave is best for summarising pages, PDFs and Google Docs privately and quick answers with Brave Search sources. Opera Neon is best for handing off web chores like bookings and form filling and deep research reports on a market or competitor. Comet is best for summarising long pages, PDFs and videos and comparing products or suppliers across tabs.

Which is cheaper, Brave, Opera Neon or Comet?

Brave: There's a free plan, and paid plans start at $14.99/mo. Opera Neon: There's a free plan, and paid plans start at $19.90/mo. Comet: There's a free plan, and paid plans start at $5/mo.

Which is easier to use, Brave, Opera Neon or Comet?

Comet rates highest for ease of use in our scores. Anyone who researches, compares or reads a lot online and wants an AI helper in the browser without paying for it.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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