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

# Rate limits

> How GMI Cloud rate-limits inference API requests and how to handle 429 responses.

To maintain system stability and equitable access, our API enforces rate limiting, controlling how frequently an organization can send requests within a certain time window.

API rate limits are defined in two ways:

* **TPM (Tokens per Minute)** for LLM models
* **RPH (Requests per Hour)** for video models

These limits are enforced at the organization level.

## Usage Tiers and Auto Upgrades

Rate limits vary by usage tier, with each tier offering different quotas for each model. By default, organizations are assigned to **Tier 1**.

As you buy credit from our platform, we automatically upgrade you to the next usage tier, using the following tier system. For example, after purchasing a \$50 credit balance, you will be upgraded to Tier 2 within 24 hours.

Please note that voucher redemptions do not count towards purchase.

| Tier Name | Total Purchase Amount | Time After  |
| --------- | --------------------- | ----------- |
| Tier 1    | \$0                   | Immediately |
| Tier 2    | \$50                  | 24 hours    |
| Tier 3    | \$500                 | 24 hours    |
| Tier 4    | \$1000                | 24 hours    |

If somehow you wish to request for a manual tier upgrade, please contact [support@gmicloud.ai](mailto:support@gmicloud.ai).

## Rate Limit Table

| Model Name | Tier 1 TPM | Tier 2 TPM | Tier 3 TPM | Tier 4 TPM  | Tier 5 TPM  |
| ---------- | ---------- | ---------- | ---------- | ----------- | ----------- |
| All Models | 1,000,000  | 3,000,000  | 50,000,000 | 100,000,000 | 300,000,000 |

Notes: The specific model is subject to adjustments.