Add support for sage attention 3 in comfyui, enable via new cli arg #11026
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--use-sage-attiention3
rattus128
reviewed
Dec 2, 2025
rattus128
reviewed
Dec 2, 2025
rattus128
reviewed
Dec 2, 2025
Attention 3 takes effect is reduced to 1024 (although the improvement is not significant at this scale).
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This is basic Sage Attention 3 support. Because it is still unstable and differs significantly from previous versions of Sage Attention, a separate switch --use-sage-attiention3 is provided to enable or disable it. You need to install Sage Attention 3 in your environment before enabling it.