GPT-Live 1
Default
Our premier model for natural, expressive voice conversations with smooth interruption handling.
Our premier model for natural, expressive voice conversations with smooth interruption handling.
Performance
—
Not specified
Speed
—
Not specified
Price
$0.05
Per minute
Input
Audio, text
Output
Audio, text
GPT-Live 1 is a full-duplex voice model for real-time conversations. It can listen and speak at the same time, and delegate reasoning and tool use to a backend agent.
Learn how to get started with GPT-Live, configure delegation, and prompt the model.
Jul 31, 2025 knowledge cutoff
Pricing
Voice sessions cost $0.05 per minute, billed per second. Backend model and tool usage is billed separately. See the pricing page.
Live session duration
Per minute
Per minute
$0.05
Session duration is not rounded up to the next whole minute.
Backend Responses calls use the normal pricing for the configured model and tools.
Modalities
Text
Input and output
Image
Not supported
Audio
Input and output
Video
Not supported
Endpoints
Live
v1/live/sessions
Chat Completions
v1/chat/completions
Responses
v1/responses
Realtime
v1/realtime
Realtime translation
v1/realtime/translations
Realtime transcription
v1/realtime/transcription_sessions
Assistants
v1/assistants
Batch
v1/batch
Fine-tuning
v1/fine-tuning
Embeddings
v1/embeddings
Image generation
v1/images/generations
Videos
v1/videos
Image edit
v1/images/edits
Speech generation
v1/audio/speech
Transcription
v1/audio/transcriptions
Translation
v1/audio/translations
Moderation
v1/moderations
Completions (legacy)
v1/completions
Features
Streaming
Supported
Function calling
Supported
Structured outputs
Not supported
Fine-tuning
Not supported
Predicted outputs
Not supported
Snapshots
Use gpt-live-1 in your API requests.
gpt-live-1
gpt-live-1
gpt-live-1
Rate limits
Rate limits are measured in concurrent sessions.
| Tier | Concurrent sessions |
|---|---|
| Free | Not supported |
| Tier 1 | 25 |
| Tier 2 | 50 |
| Tier 3 | 200 |
| Tier 4 | 300 |
| Tier 5 | 500 |