diff --git a/stacks/comfyui/compose.yaml b/stacks/comfyui/compose.yaml
index 44a455a..4914bdb 100644
--- a/stacks/comfyui/compose.yaml
+++ b/stacks/comfyui/compose.yaml
@@ -51,7 +51,12 @@ services:
       #    (~8.7 GB) instead of upcasting the fp8 file to fp16 (~16 GB). Matches
       #    the box's Ampere-fp8 posture; the encoder runs once per gen so the
       #    upcast-on-compute cost is negligible.
-      - COMFY_CMDLINE_EXTRA=--disable-cuda-malloc --fp8_e4m3fn-text-enc
+      #  --use-sage-attention — 0.24.1's NATIVE attention selection (the node-based
+      #    BlehGlobalSageAttention is dead on 0.24.1: "does not support the new
+      #    ComfyUI attention changes"). Binds the in-image sageattention v2.2.0
+      #    sm_86 build (rebuilt against the pinned torch 2.12.1). Global speedup
+      #    across Flux/SDXL/Wan (comfy-dev benchmarking, 2026-06-18).
+      - COMFY_CMDLINE_EXTRA=--disable-cuda-malloc --fp8_e4m3fn-text-enc --use-sage-attention
     volumes:
       - ${COMFYUI_BASEDIR}:/basedir
       # models/ overlaid from storetank. The ~325 GB model tree was migrated