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 | Devin A | Aider A | Khanmigo S | |
|---|---|---|---|---|
| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Cognition Labs' autonomous coding engineer. | Terminal-based AI pair programmer. Git-aware, model-flexible. | Khan Academy's AI tutor. Socratic method, built for learning. |
| Category | Coding | Agents | Coding | Education |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | $500/mo | Free (open source) + whatever API you use | $4/mo (free for teachers) |
| Best for | Teams with GitHub already. Devs who don't want to change IDEs. | Engineering teams offloading tickets. Ops/platform work. | Developers who want open-source tooling with full control. | Students K-12. Parents helping with homework. Teachers prepping lessons. |
| Strengths |
|
|
|
|
| Weaknesses |
|
|
|
|
| Kai's verdict | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. | S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up. |
| Link | Open → | Open → | Open → | Open → |