Compare AI tools

	Perplexity S	ChatGPT Operator B	Sora A	Kling A
Tagline	AI search done right. Cited answers, not chat theater.	OpenAI's browser agent. Clicks and types on websites for you.	OpenAI's video model. Long clips, cinematic quality.	Kuaishou's video model. The surprise standout.
Category	Research	Agents	Video	Video
Pricing	Free + $20/mo Pro	Included with ChatGPT Pro $200/mo	Included with ChatGPT Plus/Pro	Credit-based, free trial
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.	ChatGPT subscribers experimenting with cinematic shots.	Anyone who wants top-tier video quality for less.
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	Up to 20-sec clips at 1080p Strong physics + scene composition Storyboard feature for longer narratives Remix existing videos	Very strong motion + physics Often beats Runway on realism Great price
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	Stricter content policy than competitors Hit-or-miss on complex motion Text-in-video still struggles	UX is rough for English speakers Queue times
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. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.	A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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