diff --git a/scripts/queue-minimax-r2v-duration-sweep.mjs b/scripts/queue-minimax-r2v-duration-sweep.mjs
index 7d8ade3..01d2128 100644
--- a/scripts/queue-minimax-r2v-duration-sweep.mjs
+++ b/scripts/queue-minimax-r2v-duration-sweep.mjs
@@ -32,6 +32,7 @@ Options:
   --height <int>             Output height. Default: ${DEFAULT_HEIGHT}
   --steps <int>              First-pass steps. Default: ${DEFAULT_STEPS}
   --high-quality <bool>      Enable HIGH QUALITY branch. Default: false
+  --upscale-multiplier <n>   Override RTX/HQ upscale multiplier. Default: prompt value
   --prefix <text>            Output filename prefix root. Default: MiniMax/r2v-duration-sweep
   --out-dir <path>           Run artifact directory. Default: ${DEFAULT_OUT_ROOT}/<timestamp>
   --dry-run                  Resolve prompts locally but do not submit
@@ -55,6 +56,7 @@ function parseArgs(argv) {
     height: DEFAULT_HEIGHT,
     steps: DEFAULT_STEPS,
     highQuality: false,
+    upscaleMultiplier: null,
     prefix: 'MiniMax/r2v-duration-sweep',
     outDir: '',
     dryRun: false,
@@ -87,6 +89,7 @@ function parseArgs(argv) {
       case '--height': options.height = Math.trunc(Number(take())); break;
       case '--steps': options.steps = Math.trunc(Number(take())); break;
       case '--high-quality': options.highQuality = parseBoolean(take()); break;
+      case '--upscale-multiplier': options.upscaleMultiplier = Number(take()); break;
       case '--prefix': options.prefix = take(); break;
       case '--out-dir': options.outDir = take(); break;
       default:
@@ -134,6 +137,9 @@ function buildPrompt(basePrompt, variant, uploadedRefs) {
   prompt['550:537'].inputs.value = variant.durationSeconds;
   prompt['566'].inputs.value = variant.steps;
   prompt['715'].inputs.value = variant.highQuality;
+  if (variant.upscaleMultiplier !== null) {
+    prompt['723'].inputs.value = variant.upscaleMultiplier;
+  }
   prompt['539'].inputs.noise_seed = variant.seed;
   prompt['591'].inputs.string_b = prompt['591'].inputs.string_b.replace(
     /A clean 10-second cinematic shot/,
@@ -205,6 +211,7 @@ async function main() {
     height: options.height,
     steps: options.steps,
     highQuality: options.highQuality,
+    upscaleMultiplier: options.upscaleMultiplier,
     seed: 8200 + index,
     prefix: options.prefix,
   }));
@@ -221,6 +228,7 @@ async function main() {
       height: options.height,
       steps: options.steps,
       highQuality: options.highQuality,
+      upscaleMultiplier: options.upscaleMultiplier,
       durations: options.durations,
       prefix: options.prefix,
     },
@@ -239,6 +247,7 @@ async function main() {
         slug: variant.slug,
         durationSeconds: variant.durationSeconds,
         frameLength: prompt['576'].inputs.length,
+        upscaleMultiplier: variant.upscaleMultiplier,
         dryRun: true,
       });
       continue;
@@ -257,6 +266,7 @@ async function main() {
       slug: variant.slug,
       durationSeconds: variant.durationSeconds,
       frameLength: prompt['576'].inputs.length,
+      upscaleMultiplier: variant.upscaleMultiplier,
       promptId,
     });
   }