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
Replit Agent A | GitHub Copilot B | Fathom S | Sudowrite S | |
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| Tagline | Replit's AI that builds + deploys full apps on their platform. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Meeting notes, free forever for individuals. | AI writing tool built specifically for fiction writers. |
| Category | coding | coding | meeting | writing |
| Pricing | $10-$25/mo Core/Teams | Free (limited) + $10/mo Pro + $19/mo Business | Free for individuals + $15-$29/user/mo teams | $19-$59/mo |
| Best for | Teachers, students, prototypers, hackathon builders. | Teams with GitHub already. Devs who don't want to change IDEs. | Solo operators, freelancers, small teams on a budget. | Novelists, screenwriters, fiction short-form writers. |
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| Kai's verdict | A-tier. Best for teaching a kid to code in 2026. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | 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. |
| Link | Open → | Open → | Open → | Open → |