diff --git a/services/imajin-video/service/src/config/settings.py b/services/imajin-video/service/src/config/settings.py
index f984746c..a1fb4b0c 100644
--- a/services/imajin-video/service/src/config/settings.py
+++ b/services/imajin-video/service/src/config/settings.py
@@ -49,11 +49,11 @@ class Settings(BaseSettings):
     model_boss_timeout_s: float = 60.0
     # Max concurrent per-frame scoring calls to model-boss (bounds GPU fan-out).
     classify_concurrency: int = 4
-    # Priority sent to model-boss for frame scoring. "high" (≤5) lets the coordinator
-    # spawn a SECOND vision slot on the idle GPU (parallel scoring); "normal" keeps it
-    # to one serialized slot. High preempts normal-priority interactive vision during
-    # peak — deliberate: video classification is bounded, high-value work.
-    classify_vision_priority: str = "high"
+    # Job class sent to model-boss for frame scoring. "batch" is polite-parallel: the
+    # coordinator may spawn a second vision slot on a free GPU to parallelize, but the
+    # work runs at low priority so it NEVER preempts interactive vision. "interactive"
+    # keeps the historical single-slot serialized behaviour.
+    classify_vision_job_class: str = "batch"
 
     # Content-aware (scene-change) keyframe sampling — clamp band is the GPU-cost lever.
     classify_scene_min_keyframes: int = 3