Compare AI tools

	Perplexity S	Groq S	ChatGPT Operator B	Runway S
Tagline	AI search done right. Cited answers, not chat theater.	The fastest AI inference in the world. Crazy low latency.	OpenAI's browser agent. Clicks and types on websites for you.	The pro's AI video tool. Gen-4 is the current bar.
Category	Research	Dev Platform	Agents	Video
Pricing	Free + $20/mo Pro	Free tier + pay-as-you-go API	Included with ChatGPT Pro $200/mo	Free + $15-$95/mo
Best for	Replacing Google for any question where you want a cited answer in seconds.	Developers who need sub-100ms LLM responses.	Power users willing to pay $200/mo for a browser bot.	Marketing video, pitch decks, b-roll, creative shorts.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	500+ tokens/sec on Llama/Mixtral — feels instant Custom LPU hardware Great free tier	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks	Most mature video workflow Character consistency via Act-One Gen-4 quality is production-grade
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Open-weight models only (no Claude/GPT) Less flexibility on custom configs	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate	Expensive at scale Still needs post-editing
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 for speed. When latency is the product, start here.	B-tier. Still early. Manus is more flexible for less money.	S-tier. Market leader with reason. Start here for serious video.
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