Compare AI tools

	Perplexity S	Fathom S	Replit Agent A	Replicate S
Tagline	AI search done right. Cited answers, not chat theater.	Meeting notes, free forever for individuals.	Replit's AI that builds + deploys full apps on their platform.	Run any open-source AI model with an API call.
Category	research	meeting	coding	dev platform
Pricing	Free + $20/mo Pro	Free for individuals + $15-$29/user/mo teams	$10-$25/mo Core/Teams	Pay per second of compute
Best for	Replacing Google for any question where you want a cited answer in seconds.	Solo operators, freelancers, small teams on a budget.	Teachers, students, prototypers, hackathon builders.	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	Unlimited free tier for solo use Strong summaries + action items Works in Zoom, Meet, Teams	Full-stack + DB + auth + deploy in one environment Great for teaching/learning Runs everything in-browser	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	Bot-joining model Team features gated	Locked into Replit hosting Less code quality than dedicated IDEs	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 for solo + free. The best free option, hands down.	A-tier. Best for teaching a kid to code in 2026.	S-tier for open-source model APIs. The default in this space.
Link	Open →	Open →	Open →	Open →