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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Sora A | Suno S | Kling A | Perplexity S | |
|---|---|---|---|---|
| Tagline | OpenAI's video model. Long clips, cinematic quality. | Prompt to full song with vocals, instruments, the works. | Kuaishou's video model. The surprise standout. | AI search done right. Cited answers, not chat theater. |
| Category | Video | Audio | Video | Research |
| Pricing | Included with ChatGPT Plus/Pro | Free + $10/mo + $30/mo | Credit-based, free trial | Free + $20/mo Pro |
| Best for | ChatGPT subscribers experimenting with cinematic shots. | Jingles, intros, demos, sketches, personal use. | Anyone who wants top-tier video quality for less. | Replacing Google for any question where you want a cited answer in seconds. |
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| Kai's verdict | A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros. | S-tier in its category. The first AI music tool I'd actually listen to. | A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class. | 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 → |