diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index 62bc0c38..73d26795 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -149,7 +149,7 @@ export namespace ProviderTransform {
         result["reasoningEffort"] = "medium"
       }
 
-      if (modelID.endsWith("gpt-5.1")) {
+      if (modelID.endsWith("gpt-5.1") && providerID !== "azure") {
         result["textVerbosity"] = "low"
       }