Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · AI Browsers

Comet vs Tandem Browser

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Comet #3 in AI Browsers 9.1/10 Free plan Free plan✓ 0 of 3 features Visit Comet
Tandem Browser #7 in AI Browsers 8.7/10 Free plan Free plan✓ 3 of 3 features Visit Tandem Browser

Comet leads on 0 checks, Tandem Browser on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreComet · 9.1/10
  • Free planboth
  • Most featuresTandem Browser · 3 of 3

Comet scores higher on our rubric for ai browsers: 9.1 against 8.7 out of 10; our editors rank them #3 and #7.

Comet is the better fit for free general-purpose AI browsing. Tandem Browser is the better fit for teams sharing secure agent browser sessions.

  • Comet fits best

    Free general-purpose AI browsing

  • Tandem Browser fits best

    Teams sharing secure agent browser sessions

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Comet 9.1/10 Visit ↗ Tandem Browser 8.7/10 Visit ↗
At a glance
Editor score 9.1 8.7
Ranking #3 in AI Browsers #7 in AI Browsers
Best for Free general-purpose AI browsing Teams sharing secure agent browser sessions
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Desktop
Platforms macOS, Windows, iOS, Android macOS, Windows, Linux
Integrations 2 integrations 9 integrations
Features Comet 0/3 · Tandem Browser 3/3
Page summaries Not checked yet ✓ (best)
AI research mode Not checked yet ✓ (best)
Browser agent Not checked yet ✓ (best)
Specs
Supported platforms Not checked yet macOS Apple Silicon, Windows 11 x64, Linux (best-effort)
Browser engine Chromium Chromium
Privacy model Not checked yet Local
Our review
Pros
  • Perplexity search, page questions, and summaries are built into browsing.
  • Available for macOS, Windows, iOS, and Android with cross-device sync.
  • Supports Chrome Web Store extensions and built-in ad blocking.
  • Agents and people share tabs, cookies, and logged-in sessions.
  • DevTools, network inspection, and DOM-based interaction are built in.
  • MCP, HTTP API, multiple agents, and human handoffs support varied workflows.
Cons
  • Gmail is the only listed integration.
  • Some Perplexity AI capabilities may vary by subscription plan.
  • AI assistance is centered on search, browser commands, and page context.
  • Linux support is best-effort.
  • The browser engine is Chromium, limiting engine choice.
  • It is presented as a developer preview rather than a paid, plan-based product.
Our verdict

Comet combines Chromium-based browsing with Perplexity AI search and assistance. It is aimed at people who want a general-purpose browser with natural-language commands, questions about open pages, and summaries alongside conventional…

Read the review →

Tandem Browser is an open-source desktop browser that lets AI agents work inside a person’s real browser session. It is aimed at teams that want agents to navigate websites and automate SaaS workflows without separate site APIs, while…

Read the review →
  1. CometAI Browsers 9.1Free plan
  2. Tandem BrowserAI Browsers 8.7Free plan

Strengths and trade-offs

  • Comet — where it wins

    • Perplexity search, page questions, and summaries are built into browsing.
    • Available for macOS, Windows, iOS, and Android with cross-device sync.
    • Supports Chrome Web Store extensions and built-in ad blocking.

    Where it doesn't

    • Gmail is the only listed integration.
    • Some Perplexity AI capabilities may vary by subscription plan.
    • AI assistance is centered on search, browser commands, and page context.

  • Tandem Browser — where it wins

    • Agents and people share tabs, cookies, and logged-in sessions.
    • DevTools, network inspection, and DOM-based interaction are built in.
    • MCP, HTTP API, multiple agents, and human handoffs support varied workflows.

    Where it doesn't

    • Linux support is best-effort.
    • The browser engine is Chromium, limiting engine choice.
    • It is presented as a developer preview rather than a paid, plan-based product.

More comparisons

All AI browsers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update