diff --git a/OpenAI.SDK/Interfaces/IChatCompletionService.cs b/OpenAI.SDK/Interfaces/IChatCompletionService.cs
index 19ec3b6c..6ff0dc58 100644
--- a/OpenAI.SDK/Interfaces/IChatCompletionService.cs
+++ b/OpenAI.SDK/Interfaces/IChatCompletionService.cs
@@ -23,9 +23,10 @@ public interface IChatCompletionService
     /// </summary>
     /// <param name="modelId">The ID of the model to use for this request</param>
     /// <param name="chatCompletionCreate"></param>
+    /// <param name="justDataMode">Ignore stream lines if they don’t start with "data:". If you don't know what it means, probably you shouldn't change this.</param>
     /// <param name="cancellationToken">Propagates notification that operations should be canceled.</param>
     /// <returns></returns>
-    IAsyncEnumerable<ChatCompletionCreateResponse> CreateCompletionAsStream(ChatCompletionCreateRequest chatCompletionCreate, string? modelId = null, CancellationToken cancellationToken = default);
+    IAsyncEnumerable<ChatCompletionCreateResponse> CreateCompletionAsStream(ChatCompletionCreateRequest chatCompletionCreate, string? modelId = null, bool justDataMode = true,CancellationToken cancellationToken = default);
 }
 
 public static class IChatCompletionServiceExtension
diff --git a/OpenAI.SDK/Managers/OpenAIChatCompletions.cs b/OpenAI.SDK/Managers/OpenAIChatCompletions.cs
index 8018c604..ffd52b08 100644
--- a/OpenAI.SDK/Managers/OpenAIChatCompletions.cs
+++ b/OpenAI.SDK/Managers/OpenAIChatCompletions.cs
@@ -17,7 +17,7 @@ public async Task<ChatCompletionCreateResponse> CreateCompletion(ChatCompletionC
     }
 
     /// <inheritdoc />
-    public async IAsyncEnumerable<ChatCompletionCreateResponse> CreateCompletionAsStream(ChatCompletionCreateRequest chatCompletionCreateRequest, string? modelId = null,
+    public async IAsyncEnumerable<ChatCompletionCreateResponse> CreateCompletionAsStream(ChatCompletionCreateRequest chatCompletionCreateRequest, string? modelId = null, bool justDataMode = true,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         // Helper data in case we need to reassemble a multi-packet response
@@ -39,12 +39,18 @@ public async IAsyncEnumerable<ChatCompletionCreateResponse> CreateCompletionAsSt
             cancellationToken.ThrowIfCancellationRequested();
 
             var line = await reader.ReadLineAsync();
+            
             // Skip empty lines
             if (string.IsNullOrEmpty(line))
             {
                 continue;
             }
 
+            if (justDataMode && !line.StartsWith("data: "))
+            {
+                continue;
+            }
+
             line = line.RemoveIfStartWith("data: ");
 
             // Exit the loop if the stream is done