> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://dev.hume.ai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://dev.hume.ai/_mcp/server.

# Billing

This guide details how billing works for Hume products and how to manage billing on your account.

* **Pricing**: See plans and inclusions on our [pricing page](https://www.hume.ai/pricing).
* **Billing**: Update payment methods and change plans in the [billing portal](https://app.hume.ai/billing).
* **Support**: Questions? Email [assist@hume.ai](mailto:assist@hume.ai).

## How billing works

**Hume uses two billing models:**

<table>
  <tbody>
    <tr>
      <th>
        Billing model
      </th>

      <th>
        Applies to
      </th>

      <th>
        How charges work
      </th>
    </tr>

    <tr>
      <td>
        Subscription
      </td>

      <td>
        TTS, EVI, and Voice features
      </td>

      <td>
        One subscription includes all three. Each plan has included usage. Overage rates apply after you exceed
        included usage.
      </td>
    </tr>
  </tbody>
</table>

> **Tip**
>
> New accounts start on the **free tier** with **\$20 in credits**.

### Subscriptions

Your subscription includes access to [Text-to-Speech (TTS)](/docs/text-to-speech-tts/overview), [Speech-to-Speech (EVI)](/docs/speech-to-speech-evi/overview), and [Voice features](/docs/voice/overview). There is **no
separate pricing** for TTS, EVI, or Voice features.

* **Start or change a plan** in the [billing portal](https://app.hume.ai/billing).
* Your **billing cycle starts the day you begin a paid subscription** and renews monthly on that same calendar day.
* **Included usage** and plan limits reset at the start of each cycle
* **Upgrades take effect immediately**; downgrades take effect at the next renewal
* **Overage billing** applies when you exceed included usage; see plan rates at our [pricing page](https://www.hume.ai/pricing)

**External LLM usage with EVI**

* Using **Hume managed external LLMs** adds supplemental usage to your bill.
* If you **use your own LLM API key or a custom language model**, Hume **does not charge** for that LLM usage.

## Charges and Invoices

* **Subscription renewals** are charged on your monthly renewal date
* **Additional usage** is charged each time you accrue \$44 of usage; to change this threshold, email [assist@hume.ai](mailto:assist@hume.ai)
* You receive an **email receipt** for successful charges and **invoice PDFs** are available in the Platform.

> **Warn**
>
> If payment fails, we will notify you and may pause API access until the outstanding balance is settled.

## Manage billing

**Go to Billing in the Platform: [app.hume.ai/billing](https://app.hume.ai/billing)**

* View usage and renewal date
* Update payment methods
* Download invoices
* Change plans

**If you have questions, contact [assist@hume.ai](mailto:assist@hume.ai).**

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