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
Lex A | GitHub Copilot B | Udio A | Grammarly A | |
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| Tagline | Google Docs with an AI collaborator baked in. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Suno's main rival. Often better on instrumental nuance. | Grammar check + tone + AI drafting, everywhere you type. |
| Category | Writing | Coding | Audio | Writing |
| Pricing | Free + $12/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free + $10-$30/mo | Free + $12-$15/mo Premium + team plans |
| Best for | Essays, long-form drafts, thinking on the page. | Teams with GitHub already. Devs who don't want to change IDEs. | Musicians comparing AI outputs. Anyone who didn't click with Suno. | Non-native English writers, business email, anyone who types a lot. |
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| Kai's verdict | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier. Genuinely different vibe from Suno — worth trying both for a month. | A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone. |
| Link | Open → | Open → | Open → | Open → |