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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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Windsurf
A
Bolt.new (StackBlitz)
A
OpenAI Voice / Realtime
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Prompt to deployed full-stack app in the browser.ChatGPT's voice + the Realtime API for developers.
Categorycodingcodingvoice
PricingFree + $15/mo ProFree + $20-$200/moVoice included with ChatGPT Plus; Realtime API by usage
Best forDevelopers who want Cursor-like power for less money.PMs, founders, non-devs shipping MVPs.Voice chat users, developers building voice agents on OpenAI.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
Weaknesses
  • Smaller community
  • Model selection more limited
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. Best for fast prototypes. Competitive with Lovable — try both.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.
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