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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Coding
Image
Productivity
Writing
Marketing
Fathom S | Cartesia S | GitHub Copilot B | Adobe Firefly A | |
|---|---|---|---|---|
| Tagline | Meeting notes, free forever for individuals. | Ultra-low-latency voice. Built for realtime agents. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Commercially safe image gen, deeply integrated with Photoshop. |
| Category | Meetings | Voice | Coding | Image |
| Pricing | Free for individuals + $15-$29/user/mo teams | Free tier + usage-based API | Free (limited) + $10/mo Pro + $19/mo Business | Free + included with Creative Cloud |
| Best for | Solo operators, freelancers, small teams on a budget. | Developers building voice agents, phone bots, interactive apps. | Teams with GitHub already. Devs who don't want to change IDEs. | Anyone in Creative Cloud. Brands that need copyright clarity. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier for realtime. If latency matters more than voice catalog, start here. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier inside Photoshop (Generative Fill). B-tier standalone. |
| Link | Open → | Open → | Open → | Open → |