OpenAI on July 8, 2026 introduced two new-generation voice models, "GPT-Live-1" and "GPT-Live-1 mini," launching a global rollout to ChatGPT Voice while signaling that both will come to its API soon.
July 8, 2026 · OpenAI
GPT-Live Wants AI Voice to Feel Like a Real Conversation
OpenAI launches two full-duplex voice models — GPT-Live-1 and GPT-Live-1 mini — rolling out to ChatGPT Voice worldwide, with API access "coming soon." The pitch: overlapping speech, natural interruptions, and stronger reasoning built in.
150M+
People using ChatGPT Voice every week
2
New models: GPT-Live-1 & GPT-Live-1 mini
9
Voices remastered for the new models
Old pipeline vs. full-duplex
Earlier systems processed speech step-by-step, causing latency and awkward turns. GPT-Live listens and speaks at the same time.
Cascade / turn-based
Recognize
→
Reason
→
Synthesize
Waits for silence · latency · awkward interruptions
GPT-Live full-duplex
Listen
+
Speak
=
Simultaneous
Backchannels · mid-sentence interruptions · pauses to think · noise-resilient
Preferred over Advanced Voice Mode
In 5–10 minute conversations, human evaluators favored GPT-Live across every dimension tested.
Overall preference ✓
Turn-taking ✓
Interruptions ✓
Naturalness ✓
GPQA
Substantial gain in expert scientific reasoning
BrowseComp
Strong improvement in agentic web search
Who gets what
GPT-Live-1
Default for Go / Plus / Pro on ChatGPT Voice
GPT-Live-1 mini
Default for Free users
API access
Coming soon — sign-up for notification
Video / screen share
Not supported yet — coming soon
Early praise
Leap in naturalness and low latency
Hopes for real-time coding assistance
Reasoning handed off to GPT-5.5 without breaking the flow
Open questions
API not live — limited real-world reports
Unclear split from gpt-realtime-2
Fluency & accent limits in some languages
Pricing, context and full benchmarks undisclosed
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