OpenAI on July 8, 2026 unveiled GPT-Live, a new-generation model powering ChatGPT's voice features, and began a global rollout the same day. Built on a "full-duplex" architecture that lets it listen and speak simultaneously, the model aims to make conversations feel more natural, the company said in an official blog post .
July 8, 2026 · OpenAI
GPT-Live: Voice AI That Listens and Speaks at the Same Time
A new "full-duplex" model powering ChatGPT Voice launched globally the same day — judging the conversation many times per second so it can react, backchannel, and wait, while quietly delegating hard questions to GPT-5.5.
150M
users on ChatGPT voice features weekly — the reach of this rollout
2
versions: GPT-Live-1 & the lighter GPT-Live-1 mini
Same day
unveiled and rolled out globally across iOS / Android / web
Turn-based vs. full-duplex — reaction speed
1×
Old Advanced Voice Mode — waits for you to finish, then replies
many×/sec
GPT-Live — judges the interaction multiple times per second
Full-duplex means it can react to interruptions, backchannel ("mhmm," "yeah"), and pause when you do.
How it keeps flow while thinking hard
You speak
interrupt or pause freely
→
GPT-Live
natural real-time voice
→
GPT-5.5
hard questions handled in background
Measured against the old Advanced Voice Mode
Human eval — pleasantness & flow (5–10 min)
Strongly preferred
GPQA — expert science reasoning
Substantially ahead
BrowseComp — agentic web search
Strong improvement
τ³-Voice Telecom — support task
Advantage
Early praise
Talks and listens at the same time
Waits if you pause instead of steamrolling
Quietly hands hard questions to GPT-5.5
From "answering machine" to real conversation; strong at real-time translation
Current limits
Gaps for some non-native accents & fluency
Video & screen sharing not yet supported
General API availability still coming soon
Legacy Voice Mode remains available
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