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)
Dev Platform
Agents
Video
Coding
Image
Productivity
Writing
Marketing
GitHub Copilot B | Writesonic B | OpenAI Voice / Realtime S | MagicSchool S | |
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| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | SEO-first AI writer. Optimized for ranking content. | ChatGPT's voice + the Realtime API for developers. | AI platform built for teachers. Lesson plans + IEPs + admin. |
| Category | Coding | Marketing | Voice | Education |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | Free + $15-$99/mo | Voice included with ChatGPT Plus; Realtime API by usage | Free + $100/yr Plus + school plans |
| Best for | Teams with GitHub already. Devs who don't want to change IDEs. | Content marketers churning out SEO articles. | Voice chat users, developers building voice agents on OpenAI. | Teachers prepping materials. School districts. |
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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. Use Claude + manual SEO thinking. Writesonic is fast but generic. | S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement. | S-tier for teachers. If you teach K-12, start here this week. |
| Link | Open → | Open → | Open → | Open → |