> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vapi.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Billing Examples

> End-to-end examples estimating voice workflow cost on Vapi.

<Frame>
  <img src="https://mintlify.s3-us-west-1.amazonaws.com/vapi/static/images/learn/billing/billing-example-template.png" />
</Frame>

## Case Examples

Here are a few case-examples of what billing would look like on Vapi for different voice pipeline configurations.

<AccordionGroup>
  <Accordion title="Call Center (Inbound Phone)" icon="phone-arrow-down-left" iconType="solid" defaultOpen={true}>
    A customer is looking to use Vapi to assist their call center staff taking phone calls inbound:

    <Steps>
      <Step title="Scenario">
        <div>
          "I want to use Vapi voice assistants to support my human customer service reps in a call
          center. However, I have a custom LLM I would prefer to use instead of the ones offered through
          the platform.
        </div>

        <div>
          Expected monthly usage will be 10,000 calls, with an average of 2 minutes per call. For Voice,
          PlayHT will suit our needs.
        </div>

        <div>What is my pricing breakdown?"</div>
      </Step>

      <Step title="Providers">
        The providers used will determine per-minute cost. The following providers will be involved:

        <div>**Transcriber:** Deepgram</div>
        <div>**Model:** custom model</div>
        <div>**Voice:** PlayHT</div>
        <div>**Telephony:** Twilio (receiving inbound phone calls)</div>

        <br />

        <Frame caption="The customer will be using a custom model & taking inbound phone calls.">
          <img src="https://mintlify.s3-us-west-1.amazonaws.com/vapi/static/images/learn/billing/custom-model-inbound-phone-example.png" />
        </Frame>

        <br />
      </Step>

      <Step title="Cost Breakdown">
        We will break down the costs of each piece of the voice pipeline, then later multiply by call volume:

        <div>**Deepgram:** ≈ \$0.01/min</div>
        <div>**Custom Model:** ≈ \$0.04/min (vague assumption, can vary widely)</div>
        <div>**PlayHT:** ≈ \$0.07/min</div>
        <div>**Twilio:** ≈ \$0.02/min (inbound, toll-free) (see Twilio [phone call pricing](https://www.twilio.com/en-us/voice/pricing))</div>
        <div>**Vapi:** \$0.05/min</div>

        <Tip>Our [estimating costs](/billing/estimating-costs) guide can help you determine these values.</Tip>
      </Step>

      <Step title="Final Estimate">
        Call Minutes / Month: 10,000 calls x 2 min/call = **20,000 call minutes**

        <div>**Transcription:** \$0.01/min x 20,000 = **\$200**</div>
        <div>**Custom Model:** \$0.04/min x 20,000 = **\$800**</div>
        <div>**Voice:** ≈ \$0.07/min x 20,000 = **\$1,400**</div>
        <div>**Telephony:** ≈ \$0.02/min x 20,000 = **\$400**</div>
        <div>**Vapi:** \$0.05/min x 20,000 = **\$1,000**</div>

        **Total**: **\$3,800**/mo
      </Step>
    </Steps>
  </Accordion>

  <Accordion title="Real Estate Lead Generation (Outbound Phone)" icon="phone-arrow-up-right" iconType="solid">
    A customer doing real estate lead generation is looking to use Vapi to automate parts of their sales calling operation:

    <Steps>
      <Step title="Scenario">
        "I have a company that does real estate lead generation, and would like to use Vapi voice
        assistants to automate parts of my sales process.

        Calls would average \~4 minutes, for Model I want to use GPT-3.5-turbo through your platform, and for Voice I will be using a ElevenLabs.

        I’d like a breakdown based on sending 1,000 outbound calls in one month."
      </Step>

      <Step title="Providers">
        <div>**Transcriber:** Deepgram</div>
        <div>**Model:** OpenAI (GPT-3.5 Turbo)</div>
        <div>**Voice:** ElevenLabs</div>
        <div>**Telephony:** Vonage (sending outbound phone calls)</div>

        <br />

        <Frame caption="The customer will be using GPT-4 & making outbound phone calls.">
          <img src="https://mintlify.s3-us-west-1.amazonaws.com/vapi/static/images/learn/billing/outbound-phone-example.png" />
        </Frame>

        <br />
      </Step>

      <Step title="Cost Breakdown">
        <div>**Deepgram:** ≈ \$0.01/min</div>
        <div>**OpenAI (GPT-3.5 Turbo):** ≈ \$0.02/min</div>
        <div>**ElevenLabs:** ≈ \$0.04/min</div>
        <div>**Vonage:** ≈ \$0.01/min (outbound call) (see Vonage's [phone call pricing](https://www.vonage.com/communications-apis/voice/pricing))</div>
        <div>**Vapi:** \$0.05/min</div>

        <Tip>Our [estimating costs](/billing/estimating-costs) guide can help you determine these values.</Tip>
      </Step>

      <Step title="Final Estimate">
        Call Minutes / Month: 1,000 calls x 4 min/call = **4,000 call minutes**

        <div>**Transcription:** \$0.01/min x 4,000 = **\$40**</div>
        <div>**Model:** \$0.02/min x 4,000 = **\$80**</div>
        <div>**Voice:** ≈ \$0.04/min x 4,000 = **\$160**</div>
        <div>**Telephony:** ≈ \$0.01/min x 4,000 = **\$40**</div>
        <div>**Vapi:** \$0.05/min x 4,000 = **\$200**</div>

        **Total**: **\$520**/mo
      </Step>
    </Steps>
  </Accordion>

  <Accordion title="Mock Intervieweing Application (Web)" icon="browser" iconType="solid">
    A web engineer is looking to develop a website that helps job candidates practice for job interviews. They are looking to use Vapi for their virtual interviewers:

    <Steps>
      <Step title="Scenario">
        "Hi, I'm looking to develop a web application for mock interviews. Users will be able to practice for a variety
        of job interviews with AI interviewers.

        Interviews will be 30-minutes each (at max), for model I'll be using a custom open-source model hosted with Baseten & for voice I'll be using PlayHT.

        How much would this cost me each month if I service 1,000 interviews per month?"
      </Step>

      <Step title="Providers">
        <div>**Transcriber:** Deepgram</div>
        <div>**Model:** custom model</div>
        <div>**Voice:** PlayHT</div>

        <br />

        <Frame caption="The customer will be using a custom model & making web calls (no telephony will be involved).">
          <img src="https://mintlify.s3-us-west-1.amazonaws.com/vapi/static/images/learn/billing/web-interviews-example.png" />
        </Frame>

        <br />
      </Step>

      <Step title="Cost Breakdown">
        <div>**Deepgram:** ≈ \$0.01/min</div>
        <div>**Custom Model:** ≈ \$0.02/min (vague assumption, can vary widely)</div>
        <div>**PlayHT:** ≈ \$0.07/min</div>
        <div>**Vapi:** \$0.05/min</div>

        <Tip>Our [estimating costs](/billing/estimating-costs) guide can help you determine these values.</Tip>
      </Step>

      <Step title="Final Estimate">
        Call Minutes / Month: 1,000 calls x 30 min/call = **30,000 call minutes**

        <div>**Transcription:** \$0.01/min x 30,000 = **\$300**</div>
        <div>**Model:** \$0.02/min x 30,000 = **\$600**</div>
        <div>**Voice:** ≈ \$0.07/min x 30,000 = **\$2,100**</div>
        <div>**Vapi:** \$0.05/min x 30,000 = **\$1,500**</div>

        **Total**: **\$4,500**/mo
      </Step>
    </Steps>
  </Accordion>
</AccordionGroup>

### Further Reading

<CardGroup cols={2}>
  <Card title="Provider Costs" icon="route" iconType="solid" href="/billing/cost-routing">
    Learn more about where provider costs end up getting billed.
  </Card>

  <Card title="Estimating Costs" icon="equals" iconType="solid" href="/billing/estimating-costs">
    Learn more about determining per-minute costs for providers.
  </Card>
</CardGroup>