diff --git a/.changeset/chilly-yaks-tickle.md b/.changeset/chilly-yaks-tickle.md
new file mode 100644
index 00000000..8d01ffd0
--- /dev/null
+++ b/.changeset/chilly-yaks-tickle.md
@@ -0,0 +1,6 @@
+---
+"github.com/livekit/protocol": patch
+"@livekit/protocol": patch
+---
+
+Add generated flag to ChatMessage
diff --git a/protobufs/livekit_models.proto b/protobufs/livekit_models.proto
index 3a90e6b2..0ffca852 100644
--- a/protobufs/livekit_models.proto
+++ b/protobufs/livekit_models.proto
@@ -299,6 +299,7 @@ message ChatMessage {
   optional int64 edit_timestamp = 3; // populated only if the intent is to edit/update an existing message
   string message = 4;
   bool deleted = 5; // true to remove message
+  bool generated = 6; // true if the chat message has been generated by an agent from a participant's audio transcription
 }
 
 enum ConnectionQuality {