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 (3 selected)
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Windsurf A | OpenAI Voice / Realtime S | Bolt.new (StackBlitz) A | |
|---|---|---|---|
| Tagline | Codeium's agentic IDE. Cascade agent + strong free tier. | ChatGPT's voice + the Realtime API for developers. | Prompt to deployed full-stack app in the browser. |
| Category | coding | voice | coding |
| Pricing | Free + $15/mo Pro | Voice included with ChatGPT Plus; Realtime API by usage | Free + $20-$200/mo |
| Best for | Developers who want Cursor-like power for less money. | Voice chat users, developers building voice agents on OpenAI. | PMs, founders, non-devs shipping MVPs. |
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| Kai's verdict | A-tier. Close second to Cursor. If $5/mo matters, start here. | S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement. | A-tier. Best for fast prototypes. Competitive with Lovable — try both. |
| Link | Open → | Open → | Open → |