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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Runway S | Claude Code S | Julius S | ChatGPT Operator B | |
|---|---|---|---|---|
| Tagline | The pro's AI video tool. Gen-4 is the current bar. | Anthropic's CLI agent. Opus-powered, operates on your repo directly. | Chat with your data. Upload a CSV, ask questions, get charts. | OpenAI's browser agent. Clicks and types on websites for you. |
| Category | Video | Coding | Data | Agents |
| Pricing | Free + $15-$95/mo | Part of Claude Pro/Max/Team plans | Free + $20-$65/mo | Included with ChatGPT Pro $200/mo |
| Best for | Marketing video, pitch decks, b-roll, creative shorts. | Developers who want an agent, not autocomplete. Large refactors, tests, docs. | Analysts, founders, anyone with a spreadsheet + a question. | Power users willing to pay $200/mo for a browser bot. |
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| Kai's verdict | S-tier. Market leader with reason. Start here for serious video. | S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement. | S-tier for ad-hoc analysis. Makes you feel like a data scientist in 30 seconds. | B-tier. Still early. Manus is more flexible for less money. |
| Link | Open → | Open → | Open → | Open → |