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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 | HeyGen S | Elicit S | |
|---|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | Run LLMs locally. One-line install, GUI optional. | AI avatar videos. Record once, speak any language. | AI research assistant for academic literature. |
| Category | Agents | Dev Platform | Video | Research |
| Pricing | $500/mo | Free + open source | Free + $24-$65/mo | Free + $12-$42/mo |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Devs wanting offline/local LLMs for privacy or experimentation. | Course creators, multilingual marketers, anyone scaling video content. | Grad students, researchers, anyone doing literature reviews. |
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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. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | S-tier for academic research. Nothing else comes close for systematic reviews. |
| Link | Open → | Open → | Open → | Open → |