# Against Claude Cowork, DeepSeek opens its open-source Harness to developers

> Source: <https://technode.com/2026/08/14/against-claude-cowork-deepseek-opens-its-open-source-harness-to-developers/>
> Published: 2026-08-14 05:41:03+00:00

DeepSeek has opened a developer preview of DeepSeek Harness, an open-source agent harness positioned against Anthropic’s Claude Cowork. The project provides a web interface for running AI agents and uses a plugin-based structure for adding capabilities.

The project, also known as dsh, is powered by DeepSeek’s Cordis architecture and can be launched with `npx @deepseek-ai/dsh web`

. DeepSeek says the preview is still changing rapidly and may introduce compatibility-breaking changes. The repository is released under the MIT license. [[IT Home](https://www.ithome.com/0/989/446.htm), in Chinese]