mux - coding agent multiplexer
A desktop application for parallel agentic development.
Why parallelize? Here are some specific use cases we enable: Contextual continuity between relevant changes : e.g. create a workspace for code-review , refactor , and new-feature
: GPT-5-Pro : use the slow but powerful GPT-5-Pro for complex issues Run in the background for hours on end The stream will automatically resume after restarts or intermittent connection issues. If the model completes early we will show an indicator.
: use the slow but powerful GPT-5-Pro for complex issues A/B testing : run multiple workspaces in parallel on the same problem but different approaches, abandon the bad ones.
: run multiple workspaces in parallel on the same problem but different approaches, abandon the bad ones. Tangent exploration: launch tangents in mux away from main work
Features
Isolated workspaces with central view on git divergence Local : git worktrees on your local machine (docs) SSH : regular git clones on a remote server (docs)
with central view on git divergence Multi-model ( sonnet-4-* , grok-* , gpt-5-* , opus-4-* ) Ollama supported for local LLMs (docs) OpenRouter supported for long-tail of LLMs (docs)
( , , , ) VS Code Extension : Jump into mux workspaces directly from VS Code (docs)
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