| Response Setting | Pacing & Credit Impact | Best Moment to Use It |
|---|---|---|
| Brief | 1–3 crisp sentences; lowest audio output cost | Rapid Q&A, driving/walking brainstorms, interview drills |
| Balanced | Structured explanation without fluff | architecture trade-offs, meeting prep, language practice |
| Detailed | Thorough breakdown; higher spoken/token usage | Deep topic briefings when you want a full verbal walkthrough |
Semantic Voice Detection vs Rigid Silence Timers
Older voice bots cut you off the instant you pause half a second to breathe or recall a technical term. GPT Realtime Assistant streams audio over OpenAI's Realtime API with semantic voice detection that listens for whether your thought has actually landed.
Meanwhile, both your spoken words and the assistant's response appear side by side on screen—so when you sit back down at your desk, the entire brainstorm is already written down.
Interrupting ('Barge-In') Saves Both Time and Credits
You never have to wait politely while an assistant explains three things you already know. Start talking at any point during its spoken reply and the assistant yields immediately, pivoting to your correction or follow-up question.
Because live audio output consumes more credits than text, steering early and setting response length to Brief keeps sessions fast, sharp, and economical.
Turning Spoken Insights into Local Tasks
A great walking or desk session shouldn't vanish into an endless chat scroll. Inside GPT Realtime Assistant, any useful moment from a session can be turned into a device-local task with priority, status, and due dates—keeping action items right next to the session that sparked them.
Pre-Session Checklist
Saved locally in your browser so you can check your setup before starting.
Frequently Asked Questions
Do I need my own OpenAI API key to run live voice sessions?
No. Your monthly subscription includes 2,000 AI credits and mints short-lived session secrets automatically—there are no API keys or developer settings to configure.
Can I mute spoken replies and read answers silently during a call?
Yes. You can read the assistant's side-by-side text answers silently on screen whenever spoken audio out loud would disturb the room.
Continue Exploring
Asking a Voice AI About Screenshots, Photos, and Shared Mac Screens Mid-Call
Attach screenshots, camera photos, or captured Mac windows to a live voice session so GPT Realtime Assistant answers with your exact diagram, error log, or slide in view.
Read session guide →
How Realtime Voice AI Credits Work: What Audio, Text, and Translation Actually Spend
Transparent breakdown of GPT Realtime Assistant's 2,000 monthly AI credits, why live audio costs more than text, how pre-session reservations refund, and how to stretch your balance.
Read session guide →