diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index 7f299cdeb0b..a5e6324b649 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -725,9 +725,11 @@ export function variants(model: Provider.Model): Record<string, Record<string, a
       high: { reasoningEffort: "high" },
     }
   }
+  // kilocode_change start
   if (id.includes("grok") && !id.includes("grok-4.5")) {
     return {}
   }
+  // kilocode_change end
 
   switch (model.api.npm) {
     case "@kilocode/kilo-gateway": // kilocode_change
diff --git a/packages/opencode/test/provider/transform.test.ts b/packages/opencode/test/provider/transform.test.ts
index 368470ff20f..ca3874b929e 100644
--- a/packages/opencode/test/provider/transform.test.ts
+++ b/packages/opencode/test/provider/transform.test.ts
@@ -3370,6 +3370,7 @@ describe("ProviderTransform.variants", () => {
       expect(result.high).toEqual({ reasoningEffort: "high" })
     })
 
+    // kilocode_change start
     test("grok-4.5 uses standard reasoning efforts", () => {
       const model = createMockModel({
         id: "xai/grok-4.5",
@@ -3386,6 +3387,7 @@ describe("ProviderTransform.variants", () => {
       expect(Object.keys(result)).toEqual(["low", "medium", "high"])
       expect(result.medium).toEqual({ reasoningEffort: "medium" })
     })
+    // kilocode_change end
   })
 
   describe("@ai-sdk/deepinfra", () => {