Compare AI tools

	GitHub Copilot B	NotebookLM S	Fathom S	Grok A
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Google's research notebook. Turns your docs into a podcast.	Meeting notes, free forever for individuals.	xAI's chatbot. Real-time X/Twitter data + fewer refusals.
Category	coding	research	meeting	chat
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	Free	Free for individuals + $15-$29/user/mo teams	Free + $30/mo SuperGrok + included with X Premium
Best for	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.	Solo operators, freelancers, small teams on a budget.	Breaking news, live event tracking, users already on X.
Strengths	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	Unlimited free tier for solo use Strong summaries + action items Works in Zoom, Meet, Teams	Live access to X posts for real-time events Less restrictive on edgy questions Fast inference on Grok-3 and up
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Google-only Can be slow on large corpora	Bot-joining model Team features gated	Writing quality trails Claude/ChatGPT Political bias debates Ecosystem is just X
Kai's verdict	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.	S-tier for solo + free. The best free option, hands down.	A-tier for real-time. B-tier for everything else. Worth checking when news breaks.
Link	Open →	Open →	Open →	Open →