diff --git a/scripts/lib/wp7-02-controlled-executor.mjs b/scripts/lib/wp7-02-controlled-executor.mjs
index 41e1e56..1cfce51 100644
--- a/scripts/lib/wp7-02-controlled-executor.mjs
+++ b/scripts/lib/wp7-02-controlled-executor.mjs
@@ -38,6 +38,10 @@ function assertModelConfig(modelConfig) {
     && (profile.reference_endpoint !== "https://oneapi.intelligrow.cn/v1/images/edits")) {
     throw new Error("WP7_02_REFERENCE_ROUTE_PROFILE_INVALID");
   }
+  if (profile.protocol_version === "openai-images-v1" && profile.provider_model_id !== undefined
+    && profile.provider_model_id !== "gemini-3.1-flash-image") {
+    throw new Error("WP7_02_ROUTE_PROFILE_INVALID");
+  }
   return modelConfig;
 }
 
@@ -104,15 +108,16 @@ export function buildProviderRequest({ modelConfig, prompt, ratio, reference })
       url: config.route_profile.endpoint,
     };
   }
+  const providerModelId = config.route_profile.provider_model_id ?? config.model_id;
   const body = {
-    model: config.model_id,
+    model: providerModelId,
     prompt,
     response_format: "b64_json",
     size: gptImageRequestSizeForRatio(ratio),
   };
   if (reference) {
     const form = new FormData();
-    form.append("model", config.model_id);
+    form.append("model", providerModelId);
     form.append("prompt", prompt);
     form.append("response_format", "b64_json");
     form.append("size", gptImageRequestSizeForRatio(ratio));