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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Writing
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Fathom S | Sudowrite S | GitHub Copilot B | Qwen A | |
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| Tagline | Meeting notes, free forever for individuals. | AI writing tool built specifically for fiction writers. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Alibaba's open chat model. Multilingual + agentic. |
| Category | Meetings | Writing | Coding | Chatbots |
| Pricing | Free for individuals + $15-$29/user/mo teams | $19-$59/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free web + API |
| Best for | Solo operators, freelancers, small teams on a budget. | Novelists, screenwriters, fiction short-form writers. | Teams with GitHub already. Devs who don't want to change IDEs. | Vietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA. |
| Link | Open → | Open → | Open → | Open → |