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

# provider_rate_limited

> The upstream model provider is throttling this request.

**Code**: `provider_rate_limited`
**HTTP status**: `503`
**Type**: `rate_limit`

## When it fires

The upstream model provider returned a throttle response while serving your chat completion or embedding. Distinct from `too_many_requests` (which is the platform's per-team RPM cap) and `tpm_rate_limit_exceeded` (per-team TPM cap) — this code means the upstream model itself is hot.

## How to recover

Retry with exponential backoff. The `Retry-After` header is forwarded from upstream when available — respect it if set. If you're hitting this repeatedly, consider spreading load or reaching out to support.