Best Comet Alternatives in 2026

Best for: People who want accurate, sourced answers across their tabs and quick slide decks, and prefer an assistant that asks before it acts

Dia is the most careful AI browser we have tested: it asks before it reads or opens anything, got every research task right and built a real, sourced slide deck. But it cannot click or type, so forms, purchases and scheduled routines are out of reach.

Best for: Hands-on users who want a browser agent for research, form filling and data gathering and are comfortable reviewing what it installs

Strawberry got seven of our eight scripted tasks fully right, from quick web research to a sourced slide deck, but it installs two hidden Windows user accounts that stay behind after you uninstall it, uses about twice the memory of Edge and clicked “Add to basket” without asking. Capable agent, worrying footprint.