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
Claude Agent SDK S | Galileo AI B | GitHub Copilot B | OpenAI Voice / Realtime S | |
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| Tagline | Anthropic's SDK for building your own agents on Claude. | Prompt to UI design. Figma-ready outputs. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | ChatGPT's voice + the Realtime API for developers. |
| Category | Agents | Design | Coding | Voice |
| Pricing | API usage + SDK is free | Free trial + paid plans | Free (limited) + $10/mo Pro + $19/mo Business | Voice included with ChatGPT Plus; Realtime API by usage |
| Best for | Developers building custom agents for their own company/product. | Designers brainstorming first drafts. | Teams with GitHub already. Devs who don't want to change IDEs. | Voice chat users, developers building voice agents on OpenAI. |
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| Kai's verdict | S-tier for builders. The right primitives. What Kai is built on under the hood. | B-tier. Useful for first drafts. v0 is the better bet for shipping code. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement. |
| Link | Open → | Open → | Open → | Open → |