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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Stable Audio A | Google Veo A | Hume AI A | Perplexity S | |
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| Tagline | Stability AI's open audio model. Loops + SFX + background. | Google's video model. Baked into Gemini + YouTube Shorts. | Voice AI that reads + expresses emotion. | AI search done right. Cited answers, not chat theater. |
| Category | Audio | Video | Voice | Research |
| Pricing | Free + $12/mo Pro + enterprise | Included with Gemini Advanced $20/mo + YouTube creator tools | Free tier + pay-as-you-go | Free + $20/mo Pro |
| Best for | Game developers, podcasters needing SFX, video creators needing background music. | Gemini Advanced users, YouTube Shorts creators. | Therapy apps, customer service, any voice agent where emotion matters. | Replacing Google for any question where you want a cited answer in seconds. |
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| Kai's verdict | A-tier for its niche. Different use case than Suno — SFX and loops, not songs. | A-tier if you already pay Gemini. B-tier standalone. | A-tier in its niche. The only one that actually gets emotion right. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → | Open → | Open → |