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)
Coding
Image
Productivity
Writing
Marketing
Cursor S | Grok A | HeyGen S | Devin A | |
|---|---|---|---|---|
| Tagline | VS Code fork that made AI coding actually work. | xAI's chatbot. Real-time X/Twitter data + fewer refusals. | AI avatar videos. Record once, speak any language. | Cognition Labs' autonomous coding engineer. |
| Category | Coding | Chatbots | Video | Agents |
| Pricing | Free + $20/mo Pro + $40/mo Business | Free + $30/mo SuperGrok + included with X Premium | Free + $24-$65/mo | $500/mo |
| Best for | Developers. Non-developers who want to ship working code. | Breaking news, live event tracking, users already on X. | Course creators, multilingual marketers, anyone scaling video content. | Engineering teams offloading tickets. Ops/platform work. |
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| Kai's verdict | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | A-tier for real-time. B-tier for everything else. Worth checking when news breaks. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. |
| Link | Open → | Open → | Open → | Open → |