diff --git a/src/Plugins/BotSharp.Plugin.AnthropicAI/Providers/ChatCompletionProvider.cs b/src/Plugins/BotSharp.Plugin.AnthropicAI/Providers/ChatCompletionProvider.cs
index 0b30fe46..98ca310e 100644
--- a/src/Plugins/BotSharp.Plugin.AnthropicAI/Providers/ChatCompletionProvider.cs
+++ b/src/Plugins/BotSharp.Plugin.AnthropicAI/Providers/ChatCompletionProvider.cs
@@ -238,10 +238,7 @@ public class ChatCompletionProvider : IChatCompletion
 
     private string GetPrompt(MessageParameters parameters)
     {
-        //parameters.System can be null?
-        if(parameters.System == null)
-            parameters.System = new List<SystemMessage>();
-        var prompt = $"{string.Join("\r\n", parameters.System.Select(x => x.Text))}\r\n";
+        var prompt = $"{string.Join("\r\n", (parameters.System??new List<SystemMessage>()).Select(x => x.Text))}\r\n";
         prompt += "\r\n[CONVERSATION]";
 
         var verbose = string.Join("\r\n", parameters.Messages
diff --git a/src/Plugins/BotSharp.Plugin.GoogleAI/Providers/Realtime/RealTimeCompletionProvider.cs b/src/Plugins/BotSharp.Plugin.GoogleAI/Providers/Realtime/RealTimeCompletionProvider.cs
index 9055a450..ac374480 100644
--- a/src/Plugins/BotSharp.Plugin.GoogleAI/Providers/Realtime/RealTimeCompletionProvider.cs
+++ b/src/Plugins/BotSharp.Plugin.GoogleAI/Providers/Realtime/RealTimeCompletionProvider.cs
@@ -88,18 +88,15 @@ namespace BotSharp.Plugin.GoogleAi.Providers.Realtime
 
         public async Task AppenAudioBuffer(string message)
         {
-            var audioAppend = new
-            {
-                type = "input_audio_buffer.append",
-                audio = message
-            };
-
-            await SendEventToModel(audioAppend);
+           await _client.SendAudioAsync(Convert.FromBase64String(message));
         }
 
         public async Task TriggerModelInference(string? instructions = null)
         {
-            
+            await _client.SendClientContentAsync(new BidiGenerateContentClientContent()
+            {
+                TurnComplete = true,
+            });
         }
 
         public async Task CancelModelResponse()