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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OpenAI Voice / Realtime S | GitHub Copilot B | Fireflies A | Kling A | |
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| Tagline | ChatGPT's voice + the Realtime API for developers. | Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration. | Sales-focused meeting AI with CRM integration. | Kuaishou's video model. The surprise standout. |
| Category | Voice | Coding | Meetings | Video |
| Pricing | Voice included with ChatGPT Plus; Realtime API by usage | Free (limited) + $10/mo Pro + $19/mo Business | Free + $10-$19/user/mo | Credit-based, free trial |
| Best for | Voice chat users, developers building voice agents on OpenAI. | Teams with GitHub already. Devs who don't want to change IDEs. | Sales teams, customer success, anyone running many discovery calls. | Anyone who wants top-tier video quality for less. |
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| Kai's verdict | S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement. | B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't. | A-tier for sales teams. B-tier for solo users. | A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class. |
| Link | Open → | Open → | Open → | Open → |