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
Devin A | GitHub Copilot B | Sudowrite S | Copy.ai A | |
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| Tagline | Cognition Labs' autonomous coding engineer. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | AI writing tool built specifically for fiction writers. | AI GTM platform. Workflows for sales + marketing ops. |
| Category | Agents | Coding | Writing | Marketing |
| Pricing | $500/mo | Free (limited) + $10/mo Pro + $19/mo Business | $19-$59/mo | Free + $49-$249/mo |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Teams with GitHub already. Devs who don't want to change IDEs. | Novelists, screenwriters, fiction short-form writers. | RevOps + marketing ops automating repetitive tasks. |
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| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time. | A-tier for ops automation. B-tier for simple copy (use Claude). |
| Link | Open → | Open → | Open → | Open → |