diff --git a/specification/cognitiveservices/OpenAI.Inference/cadl-project.yaml b/specification/cognitiveservices/OpenAI.Inference/cadl-project.yaml
index a4d82dc84245..390e405d6d9b 100644
--- a/specification/cognitiveservices/OpenAI.Inference/cadl-project.yaml
+++ b/specification/cognitiveservices/OpenAI.Inference/cadl-project.yaml
@@ -14,5 +14,6 @@ emitters:
      namespace: "Azure.AI.OpenAI"
      clear-output-folder: true
      generateConvenienceAPI: true
+     model-namespace: false
   # Uncomment this line and add "@azure-tools/cadl-typescript" to your package.json to generate Typescript code
   # "@azure-tools/cadl-typescript": true