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
GitHub Copilot B | OpenRouter S | Suno S | Runway S | |
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| Tagline | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | One API, every model. Pay-as-you-go, no subscriptions. | Prompt to full song with vocals, instruments, the works. | The pro's AI video tool. Gen-4 is the current bar. |
| Category | Coding | Dev Platform | Audio | Video |
| Pricing | Free (limited) + $10/mo Pro + $19/mo Business | Pay per token — model-dependent | Free + $10/mo + $30/mo | Free + $15-$95/mo |
| Best for | Teams with GitHub already. Devs who don't want to change IDEs. | Developers experimenting across models. Apps that want fallback logic. | Jingles, intros, demos, sketches, personal use. | Marketing video, pitch decks, b-roll, creative shorts. |
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| Kai's verdict | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | S-tier for model-shopping. I use this for every prototype before committing. | S-tier in its category. The first AI music tool I'd actually listen to. | S-tier. Market leader with reason. Start here for serious video. |
| Link | Open → | Open → | Open → | Open → |