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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
S
ElevenLabs
S
GitHub Copilot
B
Fireflies
A
TaglineChatGPT's voice + the Realtime API for developers.The voice gold standard. Cloning + TTS + dubbing.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Sales-focused meeting AI with CRM integration.
CategoryVoiceVoiceCodingMeetings
PricingVoice included with ChatGPT Plus; Realtime API by usageFree + $5-$330/moFree (limited) + $10/mo Pro + $19/mo BusinessFree + $10-$19/user/mo
Best forVoice chat users, developers building voice agents on OpenAI.Podcasts, audiobooks, video VO, multilingual content.Teams with GitHub already. Devs who don't want to change IDEs.Sales teams, customer success, anyone running many discovery calls.
Strengths
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Most natural-sounding voices
  • Multilingual voice cloning
  • Great API
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
Weaknesses
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Pricing gets steep for production use
  • Some voices sound over-polished
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Bot-joins (intrusive)
  • Gets expensive at team scale
Kai's verdictS-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.S-tier. Category leader. Nothing else is close yet.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.
LinkOpen →Open →Open →Open →