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Ctrl+B bypasses a node in ComfyUI as if it were removed with wires reconnected through

Fact L2First instrument K · AI & real-time generative AV

Bypassing a node (Ctrl+B) is different from muting it (Ctrl+M). Muting disables the node but breaks the wire; bypass removes the node from the execution path and reconnects its input wires directly to the nodes that would have received its outputs. This is useful during live sessions to temporarily remove a processing step (e.g., a ControlNet apply, a LoRA loader, or a post-processing node) without disconnecting or rearranging wires. Pin (P) locks a node in place to prevent accidental movement. These shortcuts are essential for live workflow manipulation.

Examples

Ctrl+B on a ControlNetApply node → the conditioning flows through unchanged, the ControlNet has no effect. Ctrl+B again to restore it.

Assessment

Explain the difference between muting (Ctrl+M) and bypassing (Ctrl+B) a node. When would you prefer bypass over mute during a live session?

Prerequisites — understand these first

Don't confuse with

Sources

“Bypass selected nodes (acts like the node was removed from the graph and the wires reconnected through)”
corpus · comfyui-modular-node-graph-engine-for-diffusion-pipelines · chunk 10

Taught in modules