From 0fb45c61144eef354b9cc5df4d4af076d3eba4b4 Mon Sep 17 00:00:00 2001
From: Paul Kompfner <paul@daily.co>
Date: Tue, 31 Mar 2026 10:32:47 -0400
Subject: [PATCH] Guard _drain_cancelled_response against None websocket

---
 src/pipecat/services/openai/responses/llm.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/pipecat/services/openai/responses/llm.py b/src/pipecat/services/openai/responses/llm.py
index e47aa8c83..fce6b46d8 100644
--- a/src/pipecat/services/openai/responses/llm.py
+++ b/src/pipecat/services/openai/responses/llm.py
@@ -622,6 +622,10 @@ class OpenAIResponsesLLMService(_BaseOpenAIResponsesLLMService, WebsocketLLMServ
         state and returns — ``_ensure_connected`` will handle reconnection
         before the next inference.
         """
+        if not self._websocket:
+            self._clear_cancellation_state()
+            return
+
         logger.debug(f"{self}: Draining cancelled response events")
         try:
             while True: