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
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productivity
writing
marketing
ChatGPT Operator B | Claude Code S | Runway S | Hume AI A | |
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| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | Anthropic's CLI agent. Opus-powered, operates on your repo directly. | The pro's AI video tool. Gen-4 is the current bar. | Voice AI that reads + expresses emotion. |
| Category | agents | coding | video | voice |
| Pricing | Included with ChatGPT Pro $200/mo | Part of Claude Pro/Max/Team plans | Free + $15-$95/mo | Free tier + pay-as-you-go |
| Best for | Power users willing to pay $200/mo for a browser bot. | Developers who want an agent, not autocomplete. Large refactors, tests, docs. | Marketing video, pitch decks, b-roll, creative shorts. | Therapy apps, customer service, any voice agent where emotion matters. |
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| Kai's verdict | B-tier. Still early. Manus is more flexible for less money. | S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement. | S-tier. Market leader with reason. Start here for serious video. | A-tier in its niche. The only one that actually gets emotion right. |
| Link | Open → | Open → | Open → | Open → |