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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Coding
Image
Productivity
Writing
Marketing
Runway S | Kling A | GitHub Copilot B | v0 S | |
|---|---|---|---|---|
| Tagline | The pro's AI video tool. Gen-4 is the current bar. | Kuaishou's video model. The surprise standout. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Vercel's AI-powered UI generator. Prompt to shadcn component. |
| Category | Video | Video | Coding | Design |
| Pricing | Free + $15-$95/mo | Credit-based, free trial | Free (limited) + $10/mo Pro + $19/mo Business | Free + $20/mo |
| Best for | Marketing video, pitch decks, b-roll, creative shorts. | Anyone who wants top-tier video quality for less. | Teams with GitHub already. Devs who don't want to change IDEs. | Frontend devs, PMs prototyping UIs, anyone on Next.js. |
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| Kai's verdict | S-tier. Market leader with reason. Start here for serious video. | A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier. If you're on Vercel/shadcn, this is cheating. |
| Link | Open → | Open → | Open → | Open → |