Xum is a desktop and web application designed for running multiple AI coding agents in parallel across isolated workspaces.
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It allows developers to manage complex, long-running agentic tasks with a centralized view of git divergence and support for various execution environments.
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Isolated workspaces for parallel agent execution
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Multi-model support including Sonnet, Grok, GPT, and Claude via OpenRouter or Ollama
- 03
Support for local, git worktree, and SSH execution runtimes
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Git divergence visualization and centralized agent status monitoring
- 05
Agentic workflows including Plan/Exec modes, rich markdown output, and vim input support
Open Source
The tool is open-source under the AGPL-3.0 license with no listed paid plans.
Best for
Developers who need to run multiple AI coding agents simultaneously for long-running tasks, testing, or rapid prototyping without IDE-based constraints.
Not ideal for
Users seeking a general-purpose IDE replacement, Windows-native users, or organizations that require permissive licenses, as Xum is licensed under AGPL-3.0 and currently lacks native Windows binaries.
Xum is a powerful, enterprise-focused tool that acts as an 'excavator' for agentic workflows, providing the isolation and visibility necessary to manage high-scale, parallel AI operations that standard editor-bound assistants cannot handle.
Recent releases include the project rename from Mux to Xum, addition of Grok 4.6 as a default model, improved SSH setup speeds, and updated agent capabilities like /goal and /btw for better orchestration and non-disruptive Q&A.
As of
Is Xum (formerly Mux) free?+
Yes - Xum (formerly Mux) is Open Source. The tool is open-source under the AGPL-3.0 license with no listed paid plans.
Is Xum (formerly Mux) open source?+
Yes - Xum (formerly Mux) is open source. The tool is open-source under the AGPL-3.0 license with no listed paid plans.
Who is Xum (formerly Mux) best for?+
Developers who need to run multiple AI coding agents simultaneously for long-running tasks, testing, or rapid prototyping without IDE-based constraints.
Who is Xum (formerly Mux) not ideal for?+
Users seeking a general-purpose IDE replacement, Windows-native users, or organizations that require permissive licenses, as Xum is licensed under AGPL-3.0 and currently lacks native Windows binaries.
What are the best Xum (formerly Mux) alternatives?+
The closest Xum (formerly Mux) alternatives on ai.dosa.dev are Claude Code, Codex CLI, Amp - all listed under Terminal & CLI Agents.
Who makes Xum (formerly Mux)?+
Xum (formerly Mux) is developed by Coder. It is listed in the Terminal & CLI Agents category on ai.dosa.dev.
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