Compare AI tools

	Perplexity S	v0 S	Ollama S	Replicate S
Tagline	AI search done right. Cited answers, not chat theater.	Vercel's AI-powered UI generator. Prompt to shadcn component.	Run LLMs locally. One-line install, GUI optional.	Run any open-source AI model with an API call.
Category	research	design	dev platform	dev platform
Pricing	Free + $20/mo Pro	Free + $20/mo	Free + open source	Pay per second of compute
Best for	Replacing Google for any question where you want a cited answer in seconds.	Frontend devs, PMs prototyping UIs, anyone on Next.js.	Devs wanting offline/local LLMs for privacy or experimentation.	Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Ships working React + Tailwind code Shadcn/ui native One-click deploy to Vercel	Run Llama, Mistral, Qwen, etc. on your laptop Simple CLI + API Hardware-aware (picks the right quant)	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Best for shadcn stack Iterating can be fiddly	Needs beefy laptop for larger models Speed way behind cloud APIs	Cold starts on less-popular models Pricing gets real at scale
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. If you're on Vercel/shadcn, this is cheating.	S-tier for local inference. If you care about privacy or want to tinker, install this today.	S-tier for open-source model APIs. The default in this space.
Link	Open →	Open →	Open →	Open →