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
Gemini A | Cursor S | HeyGen S | Aider A | |
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| Tagline | Google's answer. Best integrated with Workspace + free for a lot. | VS Code fork that made AI coding actually work. | AI avatar videos. Record once, speak any language. | Terminal-based AI pair programmer. Git-aware, model-flexible. |
| Category | Chatbots | Coding | Video | Coding |
| Pricing | Free + $20/mo Advanced (bundled with 2TB Drive) | Free + $20/mo Pro + $40/mo Business | Free + $24-$65/mo | Free (open source) + whatever API you use |
| Best for | Anyone already on Google, research tasks, summarizing long documents. | Developers. Non-developers who want to ship working code. | Course creators, multilingual marketers, anyone scaling video content. | Developers who want open-source tooling with full control. |
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| Kai's verdict | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. |
| Link | Open → | Open → | Open → | Open → |