OpenAI Realtime Voice Cost Calculator
Estimate Realtime voice spend. Pick gpt-realtime or mini audio rates ($/1M in/out), enter audio input and output tokens, and optionally add GPT-Live minutes at $0.05/min. Cost = audio tokens ÷ 1M × rates + minutes × live rate. Estimates only; official OpenAI pricing prevails.
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Custom $/1M rates (optional)
Estimated USD cost
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Input cost
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Output cost
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GPT-Live cost
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Estimates only; official vendor pricing prevails (2026-10-30). Cost = audio tokens ÷ 1M × rates + live minutes × $/min.
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How it works
- How is Realtime voice cost calculated?
- Audio USD = (audio input tokens ÷ 1M × audio in $/1M) + (audio output tokens ÷ 1M × audio out $/1M). Optional GPT-Live minutes add minutes × $0.05 (list). Example: gpt-realtime-2.1 at $32/$64 with 500k in + 500k out ≈ $48.
- Which Realtime models are presets?
- gpt-realtime-2.1, 2.1-mini, 2, mini, 1.5, and gpt-realtime audio bands from the official pricing page. Edit $/1M for other snapshots.
- What is GPT-Live per-minute billing?
- gpt-live-1 voice sessions are billed per second without rounding up to a whole minute; the UI uses $0.05/min list. Backend model/tool tokens are separate—add them via the token fields or another calculator.
- Are text or image realtime tokens included?
- This page defaults to audio modality rates. For text/image realtime lines, enter custom $/1M from the official pricing table.
- Can OpenAI change these prices?
- Yes. Estimates only; confirm on OpenAI’s API pricing page before you budget.