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

# Rate Limits

> LLMLayer uses tiered rate limiting based on your total credit purchases.

## Rate Limit Tiers

| Tier       | Requests/Minute | Total Credits Purchased |
| ---------- | --------------- | ----------------------- |
| **Tier 0** | 20 rpm          | default                 |
| **Tier 1** | 50 rpm          | \$50+                   |
| **Tier 2** | 100 rpm         | \$250+                  |
| **Tier 3** | 200 rpm         | \$500+                  |
| **Tier 4** | 500 rpm         | \$1,000+                |
| **Tier 5** | 1,000 rpm       | \$3,000+                |

<Note>
  Your tier automatically increases when you purchase credits. The upgrade is instant.
</Note>

## How It Works

* **Sliding window**: Counts requests made in the last 60 seconds
* **429 errors**: Returned when you exceed your limit

## Upgrading Your Tier

Simply purchase more credits at [llmlayer.ai](https://app.llmlayer.ai). Your tier upgrades instantly based on your total purchase history.

<Tip>
  **Need higher limits?** Contact us at [support@llmlayer.ai](mailto:support@llmlayer.ai) for custom enterprise tiers above 1,000 rpm.
</Tip>