Rate limits

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Summary: Default rate limits on Dedicated Cloud and how to request changes

Original Documentation

Documentation Index#

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

Default rate limits on Dedicated Cloud and how to request changes

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 ingestion per second120 MBProject
Filestream requests per second2Run
Run creation requests per second80Project

When a limit is exceeded, the W&B SDK returns HTTP response 429, and the message HTTP 429: rate limited exceeded appears in the SDK logs.

  • Filesystem rate limits never cause logging to crash or fail. When the SDK receives a 429 response on a filestream request, it will back off and retry the rate-limited request as-is, while subsequent updates accumulate.

  • Run creation rate limits block further training.

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.

Link last verified June 7, 2026. View original ↗
Source: Weights & Biases Docs
Link last verified: 2026-04-05