Compare AI tools

	Perplexity S	Replicate S	Stripe Link A
Tagline	AI search done right. Cited answers, not chat theater.	Run any open-source AI model with an API call.	A digital wallet that lets AI agents spend on your behalf — without ever seeing your actual card number.
Category	Research	Dev Platform	Agents
Pricing	Free + $20/mo Pro	Pay per second of compute	Free for consumers; standard Stripe per-transaction fees for merchants
Best for	Replacing Google for any question where you want a cited answer in seconds.	Developers using open-source models (Flux, SDXL, Whisper, etc).	Anyone running autonomous AI agents (shopping bots, booking assistants, personal AI) who wants delegated payment capability without handing over raw card data.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy	First mainstream wallet with a built-in agent authorization layer — AI agents get one-time-use cards, not your real credentials OAuth-based approval flow means you review every agent spend request before payment credentials are shared 250M+ existing Link users means instant network coverage at hundreds of thousands of Stripe-powered merchants Developer-friendly: agent builders can use Link's wallet infra instead of rolling their own payment rails Subscription tracking, auto payment-method updates, and 90-day purchase protection bundled in
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	Cold starts on less-popular models Pricing gets real at scale	Stablecoin, agentic token, and BNPL agent-payment support is still 'coming soon' — traditional cards only at launch Per-transaction approval flow can be tedious for high-frequency agent tasks until spending-limit presets ship Merchant adoption for agent checkout paths is still early; real-world agentic commerce coverage is thin
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 open-source model APIs. The default in this space.	Stripe Link is the most credible first move toward a real agentic payment layer — the one-time-use card model is genuinely clever, and the existing merchant network gives it a head start no startup wallet can match. But the 'approve every transaction' UX will get old fast, and the hard part (autonomous spending with guardrails) is still on the roadmap. (Verdict pending Phi's full review.)
Link	Open →	Open →	Open →