diff --git a/src/open_prompt_extension.cpp b/src/open_prompt_extension.cpp
index f3a8e7b..b744e2b 100644
--- a/src/open_prompt_extension.cpp
+++ b/src/open_prompt_extension.cpp
@@ -132,7 +132,7 @@ static void OpenPromptRequestFunction(DataChunk &args, ExpressionState &state, V
             std::string api_token = GetApiToken();  // Retrieve the API Token from settings
             std::string model_name = GetModelName();  // Retrieve the model name from settings
 
-            // Prepare the JSON body
+            // Manually construct the JSON body as a string
             std::string request_body = "{";
             request_body += "\"model\":\"" + model_name + "\",";
             request_body += "\"messages\":[";
@@ -156,7 +156,22 @@ static void OpenPromptRequestFunction(DataChunk &args, ExpressionState &state, V
                 // Send the request
                 auto res = client.Post(path.c_str(), header_map, request_body, "application/json");
                 if (res && res->status == 200) {
-                    return StringVector::AddString(result, res->body);
+                    // Extract the first choice's message content from the response
+                    std::string response_body = res->body;
+                    size_t choices_pos = response_body.find("\"choices\":");
+                    if (choices_pos != std::string::npos) {
+                        size_t message_pos = response_body.find("\"message\":", choices_pos);
+                        size_t content_pos = response_body.find("\"content\":\"", message_pos);
+                        if (content_pos != std::string::npos) {
+                            content_pos += 11; // Move to the start of the content value
+                            size_t content_end = response_body.find("\"", content_pos);
+                            if (content_end != std::string::npos) {
+                                std::string first_message_content = response_body.substr(content_pos, content_end - content_pos);
+                                return StringVector::AddString(result, first_message_content);
+                            }
+                        }
+                    }
+                    throw std::runtime_error("Failed to parse the first message content in the API response.");
                 } else {
                     throw std::runtime_error("HTTP POST error: " + std::to_string(res->status) + " - " + res->reason);
                 }
@@ -167,7 +182,6 @@ static void OpenPromptRequestFunction(DataChunk &args, ExpressionState &state, V
         });
 }
 
-
 static void LoadInternal(DatabaseInstance &instance) {
     // Register open_prompt function
     ScalarFunctionSet open_prompt("open_prompt");