From 0460593466e298e6e489bb9bd47bb5dcc1d59f83 Mon Sep 17 00:00:00 2001
From: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
Date: Wed, 27 May 2026 00:36:42 +0000
Subject: [PATCH] fix(types): align OutputItemDoneEvent sequence_number default
 to 0

---
 litellm/types/llms/openai.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/litellm/types/llms/openai.py b/litellm/types/llms/openai.py
index e89fe94f955..535510c2a0a 100644
--- a/litellm/types/llms/openai.py
+++ b/litellm/types/llms/openai.py
@@ -1518,7 +1518,7 @@ class OutputItemAddedEvent(BaseLiteLLMOpenAIResponseObject):
 class OutputItemDoneEvent(BaseLiteLLMOpenAIResponseObject):
     type: Literal[ResponsesAPIStreamEvents.OUTPUT_ITEM_DONE]
     output_index: int
-    sequence_number: int = 1
+    sequence_number: int = 0
     item: BaseLiteLLMOpenAIResponseObject