OpenAI Launches GPT-Live and GPT-Live-1 mini: Full-Duplex Voice Models that Delegate Deep Reasoning to GPT-5.5
Decision Brief
What changedOpenAI releases GPT-Live and GPT-Live-1 mini, full-duplex voice models now powering ChatGPT Voice.
Why it mattersChatGPT Voice users get more responsive conversations, while search and complex reasoning are offloaded to GPT-5.5 for better quality.
Who should careTeams building on model APIs
Affected stackOpenAI
Builder actionWorth evaluating: can OpenAI replace or complement your current model
Source confidenceMedium · Reliable media or first-hand reporting
OpenAI officially launched GPT-Live and GPT-Live-1 mini voice models. These full-duplex models can listen and speak simultaneously, delegating search and deep reasoning tasks to GPT-5.5. GPT-Live now powers ChatGPT Voice. For regular ChatGPT Voice users, this means smoother, more natural interactions. Developers integrating voice via API should note the reasoning delegation mechanism to optimize response speed and accuracy.
Summary basis: official / RSS sourceCompiled from the source scope noted above; the original remains authoritative.
Sources
- MarkTechPost
Fast research-paper and ML tooling summaries, useful for infra and agent updates.
- MarkTechPost
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