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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
Devin
A
Cursor
S
Ideogram
S
TaglineChatGPT's voice + the Realtime API for developers.Cognition Labs' autonomous coding engineer.VS Code fork that made AI coding actually work.The one that actually gets text in images right.
CategoryVoiceAgentsCodingImage
PricingVoice included with ChatGPT Plus; Realtime API by usage$500/moFree + $20/mo Pro + $40/mo BusinessFree + $8/mo + $20/mo + $60/mo
Best forVoice chat users, developers building voice agents on OpenAI.Engineering teams offloading tickets. Ops/platform work.Developers. Non-developers who want to ship working code.Anything with text — posters, ads, album covers, slide decks.
Strengths
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Best text rendering in the game
  • Strong free tier
  • Good for logos, posters, thumbnails
Weaknesses
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Aesthetic ceiling below Midjourney
  • Less style variety
Kai's verdictS-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for text-in-image. Use this for posters, Midjourney for art.
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