Compare AI tools

	Perplexity S	Hugging Face S	Runway S	ChatGPT Operator B
Tagline	AI search done right. Cited answers, not chat theater.	The GitHub of AI. Models, datasets, spaces — all in one.	The pro's AI video tool. Gen-4 is the current bar.	OpenAI's browser agent. Clicks and types on websites for you.
Category	Research	Dev Platform	Video	Agents
Pricing	Free + $20/mo Pro	Free + $9-$20/mo + enterprise	Free + $15-$95/mo	Included with ChatGPT Pro $200/mo
Best for	Replacing Google for any question where you want a cited answer in seconds.	Any ML/AI developer. Hobbyists exploring open models.	Marketing video, pitch decks, b-roll, creative shorts.	Power users willing to pay $200/mo for a browser bot.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Largest open-source AI model hub Hosted inference via Spaces + Inference Endpoints Great community	Most mature video workflow Character consistency via Act-One Gen-4 quality is production-grade	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Overwhelming for beginners Hosted inference pricing varies	Expensive at scale Still needs post-editing	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate
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 infrastructure. The one platform every AI dev eventually uses.	S-tier. Market leader with reason. Start here for serious video.	B-tier. Still early. Manus is more flexible for less money.
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