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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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OpenAI Voice / Realtime
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Qwen
A
TaglineVS Code fork that made AI coding actually work.ChatGPT's voice + the Realtime API for developers.Alibaba's open chat model. Multilingual + agentic.
Categorycodingvoicechat
PricingFree + $20/mo Pro + $40/mo BusinessVoice included with ChatGPT Plus; Realtime API by usageFree web + API
Best forDevelopers. Non-developers who want to ship working code.Voice chat users, developers building voice agents on OpenAI.Vietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Excellent Chinese + Vietnamese + SEA languages
  • Strong at tool-use + agentic workflows
  • Open weights (Qwen2.5, Qwen3)
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • English quality behind Claude/GPT
  • Less well-known outside Asia
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.A-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA.
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