On November 10 the OpenAI Newsroom announced that Advanced voice and Standard voice in ChatGPT Voice will be retired on December 11, 2026. OpenAI says voice usage has nearly doubled since it introduced GPT-Live in July and that virtually all voice users are already on GPT-Live, so dropping the older modes lets it simplify the experience and focus on improving GPT-Live. According to the official Help Center article, users can keep using the old modes during the transition; from December 11 the two older voices can no longer be selected in settings, and anyone who had chosen them will be defaulted to Live voice. Live video and screen sharing will stay on Advanced voice until GPT-Live gains that capability, and voice in custom GPTs keeps using Advanced until custom GPTs themselves are retired on the same date.
Key Takeaways
- ✓Timeline: users were notified on November 10, the old modes keep working during the transition, and from December 11 Advanced and Standard can no longer be selected in Settings > Voice, with users defaulted to Live voice
- ✓Official figures: since GPT-Live launched in July, ChatGPT voice usage has nearly doubled, and virtually all voice users are already on GPT-Live (no absolute numbers given)
- ✓Three generations: Standard chained 3 models (speech-to-text, an LLM, and text-to-speech), Advanced was a turn-based native audio model, and GPT-Live is a full-duplex model that listens while it speaks
- ✓Exceptions: live video and screen sharing stay on Advanced until GPT-Live supports them; voice in custom GPTs keeps using Advanced until custom GPTs retire on December 11 (February 11, 2027 for FedRAMP and approved-deferral Enterprise workspaces)
- ✓Past conversations stay in ChatGPT history and can be continued by text or voice; the announcement includes no new benchmarks and does not mention any API endpoint changes
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Background and Industry Pain Points
ChatGPT voice has gone through three generations: the original Standard voice, then Advanced voice, and GPT-Live, introduced in July. Running several voice modes side by side means users have to pick one and OpenAI has to maintain multiple experiences. OpenAI's reasoning this time is simple: since GPT-Live launched, voice usage has nearly doubled and virtually all voice users have moved to it, so on November 10 it notified users and set December 11 as the retirement date for the two older modes.
Architecture Highlights and Underlying Mechanisms
The official Help Center explains the difference. Standard chained three models, speech-to-text, a large language model, and text-to-speech, which made responses slow and lost information across modalities. Advanced processed and generated audio natively but had to wait for the user to stop speaking before replying. GPT-Live is full-duplex: it can listen and speak at the same time, use cues like "mhmm" or "yeah" to show it is paying attention, and hand complex questions or agentic tasks to frontier text models in the background while the conversation continues.
Authoritative Benchmarks and Measured Comparisons
The announcement includes no new benchmarks and no quantitative comparison between GPT-Live and the older modes. The only figure is OpenAI's own claim that voice usage has nearly doubled, with no absolute numbers. Artificial Analysis previously ranked GPT-Live-1 first on its Speech to Speech Index in September (81.5), but that is a third-party evaluation and not part of this retirement decision.
Developer Adoption and Getting Started
Teams that rely on ChatGPT voice for demos or daily work should run their usual flows end to end on GPT-Live before December 11. Live video, screen sharing, and voice in custom GPTs still run on Advanced for now, and custom GPTs themselves retire on the same date, so they need to be migrated to plugins following the official guide. Past conversations are kept. The announcement covers only the voice options inside the ChatGPT app and does not mention API endpoint changes.
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