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 (3 selected)
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| Tagline | Open-source VS Code agent. Reads + writes + runs. | Run LLMs locally. One-line install, GUI optional. | VS Code fork that made AI coding actually work. |
| Category | coding | dev platform | coding |
| Pricing | Free (open source) + your API costs | Free + open source | Free + $20/mo Pro + $40/mo Business |
| Best for | VS Code users who want agentic coding without changing IDEs. | Devs wanting offline/local LLMs for privacy or experimentation. | Developers. Non-developers who want to ship working code. |
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| Kai's verdict | A-tier. Best free agentic option in VS Code. Use with Claude for best results. | S-tier for local inference. If you care about privacy or want to tinker, install this today. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. |
| Link | Open → | Open → | Open → |