# Rate limits

Rate limits and queue limits protect processing capacity and keep interactive jobs responsive.

## Practical client behavior

- Submit one file per API job.
- Limit client-side concurrency.
- Poll job status with backoff.
- Respect `Retry-After` when present.
- Avoid immediately resubmitting failed jobs unless the error is retryable.

## File limits

File limits are tier-specific and format-specific. Use discovery endpoints and `GET /entitlements/me` to inspect the current limits for the caller.

## Queue capacity

If processing capacity is saturated, the API returns `429` or `503`. Keep the job id for accepted jobs and retry only the request that was not accepted.

## Retention

Uploaded files and generated artifacts are encrypted at rest and automatically deleted after the retention window. Download succeeded jobs promptly.