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Gamma
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OpenAI Voice / Realtime
S
TaglineVS Code fork that made AI coding actually work.AI slide decks that don't look AI-generated.ChatGPT's voice + the Realtime API for developers.
Categorycodingproductivityvoice
PricingFree + $20/mo Pro + $40/mo BusinessFree + $10-$20/moVoice included with ChatGPT Plus; Realtime API by usage
Best forDevelopers. Non-developers who want to ship working code.Pitch decks, proposals, internal presentations — fast.Voice chat users, developers building voice agents on OpenAI.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Locked into Gamma's format
  • Export quality varies
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.
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