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 (3 selected)
coding
image
productivity
writing
marketing
Windsurf A | Claude Agent SDK S | Fathom S | |
|---|---|---|---|
| Tagline | Codeium's agentic IDE. Cascade agent + strong free tier. | Anthropic's SDK for building your own agents on Claude. | Meeting notes, free forever for individuals. |
| Category | coding | agents | meeting |
| Pricing | Free + $15/mo Pro | API usage + SDK is free | Free for individuals + $15-$29/user/mo teams |
| Best for | Developers who want Cursor-like power for less money. | Developers building custom agents for their own company/product. | Solo operators, freelancers, small teams on a budget. |
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| Kai's verdict | A-tier. Close second to Cursor. If $5/mo matters, start here. | S-tier for builders. The right primitives. What Kai is built on under the hood. | S-tier for solo + free. The best free option, hands down. |
| Link | Open → | Open → | Open → |