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

# Billing

> STT pricing, features, and limits by subscription plan.

Choose a plan and get credits each month to use across [TTS](/tts/tts), [STT](/stt/overview), [LLM Router](/router/introduction), and [Realtime API (Speech to Speech)](/realtime/overview). Higher tiers unlock features, volume discounts, increased limits and more.

<CardGroup cols={2}>
  <Card title="Pricing" href="https://inworld.ai/pricing">
    View the pricing page.
  </Card>

  <Card title="Portal Billing" href="https://platform.inworld.ai/billing">
    View and manage your plan.
  </Card>
</CardGroup>

## Plans

|                     |    **On-Demand**    |     **Creator**     |      **Developer**      |        **Growth**       |            **Enterprise**           |
| ------------------- | :-----------------: | :-----------------: | :---------------------: | :---------------------: | :---------------------------------: |
| **Price**           |         Free        |       \$25/mo       |         \$300/mo        |        \$1,500/mo       |                Custom               |
| **Best for**        | Prototyping         | Individual creators | Production applications | High-volume, compliance | Large-scale deployments, compliance |

Please see our [**Pricing Page**](https://inworld.ai/pricing) for more details about each plan, including model pricing, available features, and rate limits.

Paid plans include credits equal to the plan price each billing cycle. Unused credits on all paid plans (Creator and above) roll over for up to 3 months with an active subscription. Your credit balance is displayed at the top of the [Billing page](https://platform.inworld.ai/billing). Credits are consumed by API and Playground usage across all products (TTS, STT, LLM Router, Realtime).

You can upgrade your subscription at any time, and any unused credits from your previous plan will be credited to the new one. Any outstanding unpaid usage at the time of upgrade will be immediately charged.

If you need more credits than provided in your selected plan, you can:

* **Add credits** — Click **Add credits** to purchase more. The minimum purchase is \$10. You will be redirected to a secure checkout page, and credits are applied immediately upon payment.
* **Auto-reload** — Enable auto-reload to automatically purchase credits when your balance falls below a threshold you set. Configure the reload amount and threshold from the Billing page.

<Note>Enterprise accounts are billed per their agreement. Credit purchases are not available for enterprise plans.</Note>

To downgrade your plan or unsubscribe, please email [support@inworld.ai](mailto:support@inworld.ai).

## STT pricing

<Note>On-Demand accounts include up to 170 minutes of STT for free.</Note>

Speech-to-Text usage is billed based on audio duration. Get discounted rates by signing up for higher tiers. See the [**Pricing Page**](https://inworld.ai/pricing) for the latest pricing.

## STT features and limits by plan

Your subscription plan determines how many requests can be processed simultaneously.

|                                     | **On-Demand** | **Creator** | **Developer** | **Growth** | **Enterprise** |
| ----------------------------------- | :-----------: | :---------: | :-----------: | :--------: | :------------: |
| Streaming concurrency (Inworld STT) |       2       |      10     |       35      |     70     |     Custom     |

<Note>
  Concurrency limits apply per account and are shared across API keys.
</Note>

Available features also vary by subscription tier, including:

* HIPAA & BAA
* Zero data retention
* On-prem deployment

See the [**Pricing Page**](https://inworld.ai/pricing) for a full breakdown of features by plan.