diff --git a/llm/aicore.go b/llm/aicore.go
index 4ec7295..2180699 100644
--- a/llm/aicore.go
+++ b/llm/aicore.go
@@ -254,7 +254,7 @@ func (c *AICoreClient) CompleteAnthropic(ctx context.Context, model string, mess
 
 	reqBody := anthropicRequest{
 		AnthropicVersion: "2023-06-01",
-		Model:     model,
+		// Model omitted - AI Core deployment already specifies model
 		MaxTokens: maxTokens,
 		System:    system,
 		Messages:  userMessages,