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.
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Coding
Image
Productivity
Writing
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Devin A | Cursor S | Groq S | Replicate S | |
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| Tagline | Cognition Labs' autonomous coding engineer. | VS Code fork that made AI coding actually work. | The fastest AI inference in the world. Crazy low latency. | Run any open-source AI model with an API call. |
| Category | Agents | Coding | Dev Platform | Dev Platform |
| Pricing | $500/mo | Free + $20/mo Pro + $40/mo Business | Free tier + pay-as-you-go API | Pay per second of compute |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Developers. Non-developers who want to ship working code. | Developers who need sub-100ms LLM responses. | Developers using open-source models (Flux, SDXL, Whisper, etc). |
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| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | S-tier for speed. When latency is the product, start here. | S-tier for open-source model APIs. The default in this space. |
| Link | Open → | Open → | Open → | Open → |