Compare AI tools

	Fathom S	Devin A	GitHub Copilot B	NotebookLM S
Tagline	Meeting notes, free forever for individuals.	Cognition Labs' autonomous coding engineer.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Google's research notebook. Turns your docs into a podcast.
Category	meeting	agents	coding	research
Pricing	Free for individuals + $15-$29/user/mo teams	$500/mo	Free (limited) + $10/mo Pro + $19/mo Business	Free
Best for	Solo operators, freelancers, small teams on a budget.	Engineering teams offloading tickets. Ops/platform work.	Teams with GitHub already. Devs who don't want to change IDEs.	Students, researchers, anyone with a stack of PDFs or a topic to learn.
Strengths	Unlimited free tier for solo use Strong summaries + action items Works in Zoom, Meet, Teams	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did	Great enterprise story Works in your existing IDE Chat + autocomplete	Upload anything, ask questions, get cited answers Audio Overview turns docs into a 10-min podcast Great for studying
Weaknesses	Bot-joining model Team features gated	Expensive Best for well-scoped tasks Not for solo hobbyists	Less agentic than Cursor/Claude Code Model quality varies	Google-only Can be slow on large corpora
Kai's verdict	S-tier for solo + free. The best free option, hands down.	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.
Link	Open →	Open →	Open →	Open →