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Comet
POLAR VS COMET · AI BROWSERS, 2026
Polar vs Comet Browser
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Two AI browsers from the same origin story, now pulling in different directions. Polar chases autonomous work on macOS; Perplexity Comet leads with search-grounded research everywhere. Here is how they compare — and the free third option.
Free for macOS & Windows
THE BACKSTORY
One origin story, two directions
Polar was founded by Kevin Jiang, an engineer who helped build Perplexity Comet, together with Vishaal Ram and Howard Zhong. The two browsers share a Chromium base and an agentic AI layer — then split on what the agent is actually for.
1
Comet ships (Jul 2025)
Perplexity opens its agentic browser to Max subscribers, then makes it free worldwide in October 2025 — search and cited research at the core.
2
The founding team moves on
Kevin Jiang and his co-founders leave to build the kind of automation Comet hinted at, aimed squarely at knowledge work.
3
Composer becomes Polar (2026)
What starts as a personal browser assistant (Composer, Jan 2026) is rebuilt into a full macOS Chromium browser and renamed Polar.
4
Polar launches (Jul 29, 2026)
Official launch, a $5.7M seed round led by Madrona, and a promise: "You type, Polar does."
The fork in the road
Polar: the execution path
The agent clicks, types, and runs multi-hour workflows for you — CRM updates, research, operations — with a live action log you can check before it submits.
Comet: the research path
A side-panel agent that answers from current sources with citations, built tightly around Perplexity’s search.
That fork decides who each browser fits: execution-heavy knowledge work, or research-heavy browsing.
DECIDE
Which should you pick?
Four common situations, one clear answer each.
Long automation on macOS
You want an agent to run CRM updates or ops for hours, hands-free.
Polar
Windows or a tight budget
Polar has no Windows build and charges credits; Comet is free with limits and locked to Perplexity.
Tabbit
Security-sensitive accounts
Comet has drawn prompt-injection and session-hijack disclosures.
Tabbit
AT A GLANCE
Polar vs Comet vs Tabbit
The dimensions that matter when you choose an agentic browser.
 Polar |  Comet |  Tabbit | |
|---|---|---|---|
| Platform | macOS only | macOS, Windows, iOS, Android | macOS & Windows |
| Pricing | Free credits + $20/mo Pro | Free with limits | Free (beta) |
| AI focus | Autonomous long-horizon work | Search & cited research | Agent + multi-model chat |
| Agentic automation | Best — runs hours-long tasks | Moderate — agent mode included | Strong — Agent Mode built in |
| Model choice | Polar models only | Perplexity only | 10+ models (GPT, Claude, Gemini…) |
| Workflows | Scheduled, reusable workflows | Research sessions | Skills, workspaces, tabs |
| Security track record | New; benchmark is self-reported | Prompt injection & CometJacking disclosed | No disclosed agent-jacking incidents |
| Best for | macOS knowledge pros | Cross-platform researchers | Everyone, especially Windows |
DEEP DIVE
Where Polar fits
Polar is the newest, narrowest AI browser — built for one job, and good at it.
Strengths
- Runs long, multi-step workflows autonomously with a live action log
- Reusable prompts, templates, and scheduled routines
- Strong self-reported score on OdysseusBU Bench V1 (98.0)
- Purpose-built for research, sales, recruiting, and ops
Limits
- macOS only — no Windows build
- Credits-based pricing after the free allowance
- Benchmark is self-reported, not independently audited
- Brand new product from a small team
DEEP DIVE
Where Comet fits
Comet is Perplexity’s agentic browser — fast, cited research everywhere your accounts already are.
Strengths
- Fast, source-grounded research with Perplexity’s search
- Free agent mode on macOS, Windows, iOS, and Android
- Citations on every answer make verification easy
- Tight integration with the Perplexity ecosystem
Limits
- Security disclosures: prompt injection (Brave) and CometJacking (LayerX)
- Model locked to Perplexity — no multi-model freedom
- Heavy RAM use when AI features are active
- Free tier carries usage limits
THE TABBIT ANGLE
The third option covers both paths
If Polar is execution and Comet is research, Tabbit gives you both — without the tradeoffs.
Free, not gated
Agent Mode and Skills are included in the free beta on macOS and Windows.
Both platforms
Run the same agentic browser on macOS and Windows — no waiting on a port.
Pick your model
Swap between 10+ models for each task, from Claude and GPT to DeepSeek and Kimi.
Agent + Skills
Hand the browser a task to execute, or chain reusable Skills for work you repeat.
FAQ
Polar vs Comet, answered
Which is better: Polar or Comet?+
It depends on the job. Polar wins at autonomous, long-running work on macOS. Comet wins at fast, cited research on any platform. If you want both — plus Windows and multi-model freedom — Tabbit covers the middle ground for free.
Does Polar have a Windows version?+
No. Polar is macOS-only as of this writing. On Windows, the closest fit for Polar-style automation is Tabbit, which includes Agent Mode and is free.
Is Perplexity Comet free?+
Comet has a free tier with agent mode; advanced capabilities carry limits tied to Perplexity’s plans. Tabbit is free during beta, with Agent Mode and Skills included.
Is it safe to let an AI browser act on my accounts?+
Any agent acting inside your logged-in sessions carries risk. Independent researchers disclosed prompt-injection and session-hijack issues in Comet (Brave, LayerX). Start with research tasks, keep agent automation away from banking, and review what each browser lets you confirm before it acts.
Can I use both Polar and Comet?+
You can install more than one browser. Many people run an AI browser alongside their default. Tabbit also installs alongside Chrome or Edge without forcing a default change.
What is Tabbit?+
Tabbit is a free AI-native browser for macOS and Windows with Agent Mode, reusable Skills, smart workspaces, and 10+ models to choose from. It’s designed for everyday browsing and getting real work done.
Download Tabbit free
The agentic browser that runs on macOS and Windows, with the models you choose.