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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Perplexity S | GitHub Copilot B | Bolt.new (StackBlitz) A | ElevenLabs S | |
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| Tagline | AI search done right. Cited answers, not chat theater. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Prompt to deployed full-stack app in the browser. | The voice gold standard. Cloning + TTS + dubbing. |
| Category | Research | Coding | Coding | Voice |
| Pricing | Free + $20/mo Pro | Free (limited) + $10/mo Pro + $19/mo Business | Free + $20-$200/mo | Free + $5-$330/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Teams with GitHub already. Devs who don't want to change IDEs. | PMs, founders, non-devs shipping MVPs. | Podcasts, audiobooks, video VO, multilingual content. |
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| Kai's verdict | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier. Best for fast prototypes. Competitive with Lovable — try both. | S-tier. Category leader. Nothing else is close yet. |
| Link | Open → | Open → | Open → | Open → |