ComfyUI Extension: ComfyUI-SageAttention3

Authored by wallen0322

Created

Updated

8 stars

Strict Sage 3 (Blackwell) attention for ComfyUI official flows.

Custom Nodes (0)

    README

    ComfyUI-SageAttention3

    An experimental node

    Strict Sage 3 (Blackwell) attention for ComfyUI official flows.

    • Hot-patches torch.nn.functional.scaled_dot_product_attention to sageattn3.api.sageattn3_blackwell
    • Prints which backend is active (toggleable)

    Install

    1. Copy ComfyUI-SageAttention3 into ComfyUI/custom_nodes/
    2. Install: pip install sageattn3

    Use

    Add Attention: Sage 3 (Blackwell) before samplers, pass MODEL through, set enable=True.