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.Pick tools (4 selected)
coding
image
productivity
writing
marketing
Replicate S | HeyGen S | Cursor S | Windsurf A | |
|---|---|---|---|---|
| Tagline | Run any open-source AI model with an API call. | AI avatar videos. Record once, speak any language. | VS Code fork that made AI coding actually work. | Codeium's agentic IDE. Cascade agent + strong free tier. |
| Category | dev platform | video | coding | coding |
| Pricing | Pay per second of compute | Free + $24-$65/mo | Free + $20/mo Pro + $40/mo Business | Free + $15/mo Pro |
| Best for | Developers using open-source models (Flux, SDXL, Whisper, etc). | Course creators, multilingual marketers, anyone scaling video content. | Developers. Non-developers who want to ship working code. | Developers who want Cursor-like power for less money. |
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| Kai's verdict | S-tier for open-source model APIs. The default in this space. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | A-tier. Close second to Cursor. If $5/mo matters, start here. |
| Link | Open → | Open → | Open → | Open → |