Voice Agent Cost Calculator
Estimate combined STT + LLM + TTS cost per call.
Results update automatically as you type.
Result
$0.0690 per call
$0.0138/min · ~$1,035.00/month
- STT / min
- $0.00600
- LLM / min
- $0.000300
- TTS / min
- $0.00750
- Per call
- $0.0690
- Per month
- $1,035.00
A voice agent pays for transcription (STT), the language model, and speech synthesis (TTS) every minute. Combine all three to see the cost per call and per month.
How this is calculated
This calculator uses the media formulas described in our methodology. All figures are estimates for planning; verify current pricing with each provider before relying on them.
Worked example (defaults)
With the default inputs above, here is the result:
Result
$0.0690 per call
$0.0138/min · ~$1,035.00/month
- STT / min
- $0.00600
- LLM / min
- $0.000300
- TTS / min
- $0.00750
- Per call
- $0.0690
- Per month
- $1,035.00
Frequently asked questions
What dominates voice agent cost?+
It depends on talk time. STT and TTS scale with minutes, while the LLM scales with tokens. Long calls with a premium model tip the balance toward the LLM.