diff --git a/src/Infrastructure/BotSharp.Core/Translation/TranslationService.cs b/src/Infrastructure/BotSharp.Core/Translation/TranslationService.cs
index 9fde3ad0e..fa4233407 100644
--- a/src/Infrastructure/BotSharp.Core/Translation/TranslationService.cs
+++ b/src/Infrastructure/BotSharp.Core/Translation/TranslationService.cs
@@ -380,6 +380,7 @@ private async Task<TranslationOutput> InnerTranslate(List<TranslationInput> text
             Id = Guid.Empty.ToString(),
             Name = "Translator",
             Instruction = "You are a translation expert.",
+            LlmConfig = _router?.LlmConfig,
             TemplateDict = new()
             {
                 ["text_list"] = jsonString,
diff --git a/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/agent.json b/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/agent.json
index 5e4186dcf..56ac1c2a3 100644
--- a/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/agent.json
+++ b/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/agent.json
@@ -9,6 +9,11 @@
   "disabled": false,
   "isPublic": true,
   "profiles": [ "planning", "fallback", "human" ],
+  "llmConfig": {
+    "provider": "openai",
+    "model": "gpt-5.4-mini",
+    "max_output_tokens": 4096
+  },
   "routingRules": [
     {
       "type": "reasoner",