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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Replicate S | Kling A | Perplexity S | Fireflies A | |
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| Tagline | Run any open-source AI model with an API call. | Kuaishou's video model. The surprise standout. | AI search done right. Cited answers, not chat theater. | Sales-focused meeting AI with CRM integration. |
| Category | Dev Platform | Video | Research | Meetings |
| Pricing | Pay per second of compute | Credit-based, free trial | Free + $20/mo Pro | Free + $10-$19/user/mo |
| Best for | Developers using open-source models (Flux, SDXL, Whisper, etc). | Anyone who wants top-tier video quality for less. | Replacing Google for any question where you want a cited answer in seconds. | Sales teams, customer success, anyone running many discovery calls. |
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| Kai's verdict | S-tier for open-source model APIs. The default in this space. | A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | A-tier for sales teams. B-tier for solo users. |
| Link | Open → | Open → | Open → | Open → |