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
GitHub Copilot B | Otter.ai B | Aider A | Grammarly A | |
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| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Meeting transcription veteran. Cross-platform, team-friendly. | Terminal-based AI pair programmer. Git-aware, model-flexible. | Grammar check + tone + AI drafting, everywhere you type. |
| Category | Coding | Meetings | Coding | Writing |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | Free + $17-$30/user/mo | Free (open source) + whatever API you use | Free + $12-$15/mo Premium + team plans |
| Best for | Teams with GitHub already. Devs who don't want to change IDEs. | Teams on Windows/PC. Anyone needing cross-platform coverage. | Developers who want open-source tooling with full control. | Non-native English writers, business email, anyone who types a lot. |
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| Kai's verdict | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | B-tier. Granola is better UX but Otter works everywhere. Pick based on your platform. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. | 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 → |