GPT-Live-1
A new generation of full-duplex voice models for natural human-AI conversation
Context window
Not announced
Input / 1M tokens
Not announced
Output / 1M tokens
Not announced
Provider
OpenAI
Data verified 2026-07-09
GPT-Live is a full-duplex voice model that listens and speaks simultaneously, enabling natural back-and-forth conversation. It delegates complex reasoning, search, and agentic tasks to GPT-5.5 in the background while maintaining conversational flow. Available in two variants: GPT-Live-1 for paid users and GPT-Live-1 mini for free users.
Capability index
Relative estimates (0-100) to place this model against its peers, grounded in published benchmarks.
How to access it
Rolling out globally to ChatGPT users on Go, Plus, Pro, and Free plans. API access coming soon with sign-up available.
Strengths
- ✓Full-duplex architecture enables simultaneous listening and speaking
- ✓Natural conversational flow with acknowledgments like 'mhmm' and 'yeah'
- ✓Delegates complex reasoning to frontier models without breaking conversation
- ✓Supports live translation and interruption handling
- ✓Strongly preferred over Advanced Voice Mode in human evaluations
Best for developers who...
When to choose it (and when not to)
Reach for GPT-Live-1 when...
- →Users seeking natural, conversational voice interaction
- →Applications requiring real-time turn-taking and interruption handling
- →Tasks needing both quick responses and complex reasoning in background
Look elsewhere if...
- ✕Applications requiring video or screen sharing (not yet supported)
- ✕Use cases needing full multilingual parity (optimized for most languages)
How to use it
- ›You can interrupt naturally mid-response
- ›Pause when thinking; the model waits instead of interrupting
- ›Select reasoning levels: Instant, Medium, or High for task complexity
Quickstart
Voice (iOS/Android/Web)Open ChatGPT app → Tap Voice button → Speak naturally to GPT-LiveNo API access at launch; developers can sign up for notification
API model id: gpt-live-1
Benchmarks
| Benchmark | Score | Notes |
|---|---|---|
| GPQA | Substantially outperforms Advanced Voice Mode | Tests expert-level scientific reasoning across biology, chemistry, and physics |
| BrowseComp | Strong gains over Advanced Voice Mode | Tests agentic web search and ability to find difficult-to-locate information |
| Human Conversational Preference | Strongly preferred | 5-10 minute matched conversations measuring overall preference, turn-taking, interruptions, flow, and naturalness |
Source: OpenAI Official Announcement
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