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
GitHub Copilot B | Runway S | Claude Agent SDK S | Fathom S | |
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| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | The pro's AI video tool. Gen-4 is the current bar. | Anthropic's SDK for building your own agents on Claude. | Meeting notes, free forever for individuals. |
| Category | Coding | Video | Agents | Meetings |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | Free + $15-$95/mo | API usage + SDK is free | Free for individuals + $15-$29/user/mo teams |
| Best for | Teams with GitHub already. Devs who don't want to change IDEs. | Marketing video, pitch decks, b-roll, creative shorts. | Developers building custom agents for their own company/product. | Solo operators, freelancers, small teams on a budget. |
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| Kai's verdict | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier. Market leader with reason. Start here for serious video. | 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 → | Open → |