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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Devin A | Ollama S | Duolingo Max A | |
|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | Run LLMs locally. One-line install, GUI optional. | Duolingo + AI. Explain My Answer + Roleplay features. |
| Category | Agents | Dev Platform | Education |
| Pricing | $500/mo | Free + open source | $30/mo (or ~$168/yr) |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Devs wanting offline/local LLMs for privacy or experimentation. | Language learners who've outgrown basic Duolingo. |
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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 local inference. If you care about privacy or want to tinker, install this today. | A-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead. |
| Link | Open → | Open → | Open → |