Dia vs Comet

A side-by-side comparison of Dia and Comet — ratings, pricing, strengths, weaknesses and who each one is best for.

Updated 2026

Criteria	Dia AI browser	Comet AI browser
Rating	4.2	4.4
Pricing	Free: Free Pro: $20/mo	Free: Free Pro: $20/mo
Pros	✓ Conversational control ✓ Customizable skills ✓ Clean UI ✓ Tab understanding	✓ Autonomous browsing ✓ Sidebar assistant ✓ Strong search ✓ Now free
Cons	✗ Still early ✗ Limited platforms ✗ Features evolving	✗ Chromium-based ✗ Mind privacy ✗ Newer ecosystem
Best for	Everyday browsing, Research, Writing, Tab management	Research, Web automation, Comparison shopping, Everyday browsing
Platforms	macOS	Windows, macOS, iOS, Android

Our verdict

Comet edges ahead on our overall rating (4.4 vs 4.2 — a 0.2-point lead), but both are capable choices.

On price, Dia starts at $20/mo (Pro) and Comet starts at $20/mo (Pro).

Choose Dia if you want Writing, Tab management. Choose Comet if you need Web automation, Comparison shopping.

Read the full Dia review →Read the full Comet review →

This verdict comes from comparing documented fields — rating, price tiers, best-for, platforms — not from running both tools on the same task. The rating is editorial judgement, not user reviews.

FAQ

Is Dia better than Comet?

In our review Dia rates 4.2/5 and Comet rates 4.4/5. Dia is best for Everyday browsing, Research, while Comet suits Research, Web automation — so the better choice depends on your priorities.

What is the difference between Dia and Comet?

Dia: The Browser Company's AI browser that operates pages and tabs conversationally. Comet: Perplexity's AI browser with a built-in assistant that browses autonomously and completes multi-step tasks.

Which is cheaper, Dia or Comet?

Dia starts at Free (Free); Comet starts at Free (Free).