Start with the amount of conversation you expect.

This planner estimates minutes, not a guaranteed bill. Your chosen model, speech settings, telephone route and account rates determine the charge.

What would your calls cost?

Adjust your call volume for an example using GPT Live 1 voice and GPT-5.4 mini reasoning. Standard Burki rates; no trial credit deducted.

See rates and assumptions

Voice: $0.05/minute. Platform: $0.03/minute. Model: $0.00075 per 1,000 input tokens and $0.0045 per 1,000 output tokens. Provider usage is charged at cost, with no additional service markup.

Assumes 1,000 uncached input tokens and 200 output tokens per conversation minute, with equal voice-session and conversation duration. Longer instructions, conversation history, tools and reconnects can increase usage. No caching discount is assumed.

Rates checked September 25, 2026. Prices in USD. Your selected configuration and account rates determine the final charge; per-call rounding can affect the total.

Estimated monthly voice cost

$24.50

300 minutes · about 8¢ per minute in this example

AI voice
$15.00
Model allowance
$0.50
Burki platform
$9.00

Phone number rental, number management, carrier usage, optional actions and applicable taxes are additional. This is a planning estimate, not an all-inclusive quote.

Build and test your assistant

Include recurring number charges and costs billed directly by your providers when comparing a budget. Review any pending provider charges before treating a call total as final.

How usage pricing works