Compare AI tools
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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Perplexity S | Replicate S | Hugging Face S | Otter.ai B | |
|---|---|---|---|---|
| Tagline | AI search done right. Cited answers, not chat theater. | Run any open-source AI model with an API call. | The GitHub of AI. Models, datasets, spaces — all in one. | Meeting transcription veteran. Cross-platform, team-friendly. |
| Category | Research | Dev Platform | Dev Platform | Meetings |
| Pricing | Free + $20/mo Pro | Pay per second of compute | Free + $9-$20/mo + enterprise | Free + $17-$30/user/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Any ML/AI developer. Hobbyists exploring open models. | Teams on Windows/PC. Anyone needing cross-platform coverage. |
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| 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. | S-tier infrastructure. The one platform every AI dev eventually uses. | B-tier. Granola is better UX but Otter works everywhere. Pick based on your platform. |
| Link | Open → | Open → | Open → | Open → |