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)
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Reflect A | GitHub Copilot B | Gemini A | Elicit S | |
|---|---|---|---|---|
| Tagline | AI-powered networked notes. Roam with a brain. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Google's answer. Best integrated with Workspace + free for a lot. | AI research assistant for academic literature. |
| Category | productivity | coding | chat | research |
| Pricing | $10/mo | Free (limited) + $10/mo Pro + $19/mo Business | Free + $20/mo Advanced (bundled with 2TB Drive) | Free + $12-$42/mo |
| Best for | Knowledge workers + thinkers who want AI in their second brain. | Teams with GitHub already. Devs who don't want to change IDEs. | Anyone already on Google, research tasks, summarizing long documents. | Grad students, researchers, anyone doing literature reviews. |
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| Kai's verdict | A-tier. Niche but beloved. If you've outgrown Notion, try this. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. | S-tier for academic research. Nothing else comes close for systematic reviews. |
| Link | Open → | Open → | Open → | Open → |