Compare AI tools

	Perplexity S	Granola S	ChatGPT Operator B	Devin A
Tagline	AI search done right. Cited answers, not chat theater.	Meeting notes that don't suck. Runs locally, no bot joins.	OpenAI's browser agent. Clicks and types on websites for you.	Cognition Labs' autonomous coding engineer.
Category	Research	Meetings	Agents	Agents
Pricing	Free + $20/mo Pro	Free + $18/mo	Included with ChatGPT Pro $200/mo	$500/mo
Best for	Replacing Google for any question where you want a cited answer in seconds.	Founders, execs, consultants who live in calls.	Power users willing to pay $200/mo for a browser bot.	Engineering teams offloading tickets. Ops/platform work.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	No bot in the call — runs on your Mac Strong templates Fast summaries	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Mac-only Single-user by design	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate	Expensive Best for well-scoped tasks Not for solo hobbyists
Kai's verdict	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.	S-tier. Category-defining UX. If you take notes in meetings, switch this week.	B-tier. Still early. Manus is more flexible for less money.	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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