Compare AI tools

	Perplexity S	ChatGPT Operator B	Devin A	HeyGen S
Tagline	AI search done right. Cited answers, not chat theater.	OpenAI's browser agent. Clicks and types on websites for you.	Cognition Labs' autonomous coding engineer.	AI avatar videos. Record once, speak any language.
Category	research	agents	agents	video
Pricing	Free + $20/mo Pro	Included with ChatGPT Pro $200/mo	$500/mo	Free + $24-$65/mo
Best for	Replacing Google for any question where you want a cited answer in seconds.	Power users willing to pay $200/mo for a browser bot.	Engineering teams offloading tickets. Ops/platform work.	Course creators, multilingual marketers, anyone scaling video content.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	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	Clone your face + voice in 2 minutes Instant translation into 40+ languages with lip sync Avatars look less uncanny than competitors
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate	Expensive Best for well-scoped tasks Not for solo hobbyists	Pricey for serious volume Long shots still feel off Ethics — easy to misuse
Kai's verdict	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a 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.	S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
Link	Open →	Open →	Open →	Open →