diff --git a/config/envoy.template.yaml b/config/envoy.template.yaml
index a780c3f1b..aa12b6c5a 100644
--- a/config/envoy.template.yaml
+++ b/config/envoy.template.yaml
@@ -457,6 +457,12 @@ static_resources:
                     typed_config:
                       "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
 
+    {# Skip default egress_traffic_llm listener if user already defined a listener on port 12001 #}
+    {% set user_listener_ports = [] %}
+    {% for listener in listeners %}
+      {% set _ = user_listener_ports.append(listener.port) %}
+    {% endfor %}
+    {% if 12001 not in user_listener_ports %}
     - name: egress_traffic_llm
       address:
         socket_address:
@@ -591,6 +597,7 @@ static_resources:
                   - name: envoy.filters.http.router
                     typed_config:
                       "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
+    {% endif %}
 
   clusters:
 
diff --git a/config/plano_config_schema.yaml b/config/plano_config_schema.yaml
index 7c35d2cfd..51b0b57b6 100644
--- a/config/plano_config_schema.yaml
+++ b/config/plano_config_schema.yaml
@@ -172,14 +172,7 @@ properties:
           type: string
         provider_interface:
           type: string
-          enum:
-            - arch
-            - claude
-            - deepseek
-            - groq
-            - mistral
-            - openai
-            - gemini
+          description: "The provider interface/name. For supported providers (openai, anthropic, gemini, etc.), specify as part of model name (e.g., 'openai/gpt-4'). For custom providers, provide the interface name here."
         routing_preferences:
           type: array
           items:
@@ -219,14 +212,7 @@ properties:
           type: string
         provider_interface:
           type: string
-          enum:
-            - arch
-            - claude
-            - deepseek
-            - groq
-            - mistral
-            - openai
-            - gemini
+          description: "The provider interface/name. For supported providers (openai, anthropic, gemini, etc.), specify as part of model name (e.g., 'openai/gpt-4'). For custom providers, provide the interface name here."
         routing_preferences:
           type: array
           items: