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W&B Dedicated Cloud applies rate limits to maintain instance stability. W&B can adjust limits when you scale up training or need higher throughput.

Default limits and notification

The following default limits help maintain platform stability:
LimitDefaultScope
Filestream requests per second500Project
Filestream size120 MB per secondProject
Filestream requests per run per second2Run
Run creation requests per second80Project
When a limit is exceeded, the W&B SDK returns HTTP 429. You may see a message such as the following in your SDK logs:
HTTP 429: rate limit exceeded
These defaults are recommended for typical production workloads. If your workloads consistently exceed these limits, contact W&B support or your Account Solutions Engineer (AISE) to request higher limits. Provide details of your experimental setup and usage patterns.