---
description: Each Durable Object can use up to ten Dynamic Workers with in-flight requests.
title: Durable Objects can use up to ten Dynamic Workers concurrently
image: https://developers.cloudflare.com/changelog/post/2026-08-28-durable-objects-dynamic-workers-limit/og.png?v=a29e394d49491ca2
---

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August 28, 2026

## Durable Objects can use up to ten Dynamic Workers concurrently

[Workers](https://developers.cloudflare.com/workers/) [Durable Objects](https://developers.cloudflare.com/durable-objects/)

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[Durable Objects](https://developers.cloudflare.com/durable-objects/) can have up to ten distinct [Dynamic Workers](https://developers.cloudflare.com/dynamic-workers/) with in-flight requests, increased from four. This limit applies across all concurrent requests to the same Durable Object because they share an input/output (I/O) context. Other Workers can have up to four distinct Dynamic Workers with in-flight requests per request.

Multiple in-flight requests to the same Dynamic Worker count as one toward this limit.

For more information, refer to [Dynamic Workers limits](https://developers.cloudflare.com/dynamic-workers/platform/limits/).

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