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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Fireflies A | HeyGen S | Aider A | Replicate S | |
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| Tagline | Sales-focused meeting AI with CRM integration. | AI avatar videos. Record once, speak any language. | Terminal-based AI pair programmer. Git-aware, model-flexible. | Run any open-source AI model with an API call. |
| Category | Meetings | Video | Coding | Dev Platform |
| Pricing | Free + $10-$19/user/mo | Free + $24-$65/mo | Free (open source) + whatever API you use | Pay per second of compute |
| Best for | Sales teams, customer success, anyone running many discovery calls. | Course creators, multilingual marketers, anyone scaling video content. | Developers who want open-source tooling with full control. | Developers using open-source models (Flux, SDXL, Whisper, etc). |
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| Kai's verdict | A-tier for sales teams. B-tier for solo users. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. | S-tier for open-source model APIs. The default in this space. |
| Link | Open → | Open → | Open → | Open → |