diff --git a/LlmTornado/Chat/Vendors/Cohere/VendorCohereChatRequest.cs b/LlmTornado/Chat/Vendors/Cohere/VendorCohereChatRequest.cs
index 24d17cf..5d098e3 100644
--- a/LlmTornado/Chat/Vendors/Cohere/VendorCohereChatRequest.cs
+++ b/LlmTornado/Chat/Vendors/Cohere/VendorCohereChatRequest.cs
@@ -171,7 +171,7 @@ public VendorCohereChatRequest(ChatRequest request, IEndpointProvider provider)
         }
 
         Message = respondMsg;
-        Model = request.Model?.Name ?? ChatModel.Cohere.CommandRPlus.Name;
+        Model = request.Model?.Name ?? ChatModel.Cohere.Claude3.CommandRPlus.Name;
         Preamble = preamble;
         MaxTokens = request.MaxTokens ?? 1024;
         StopSequences = request.StopSequence?.Split(',').ToList();