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Studio And Serve

cg run launches ComfyUI. cg serve does something different: it fronts an already running ComfyUI server with contract-shaped endpoints and the packaged ComfyGit Studio UI.

Studio is a browser UI over saved workflow contracts. It uses the same contract API that scripts and external clients can call.

Runtime Shape

A typical local flow is:

cg run
cg serve --port 8190 --comfy-url http://127.0.0.1:8188

ComfyUI remains the execution backend. cg serve owns the Studio UI, upload references, contract-shaped request parsing, run records, and response shape.

Authoring Vs Serving

Manager is the supported authoring path for workflow contracts because it can inspect the live ComfyUI graph and capture the API prompt artifact.

cg serve can run existing contracts from committed environment state. It is not the primary authoring tool for new contracts.

Read more: Serving workflows and uploads and file refs.