From b0e10cf4799e870b8647d57c424bd382fb728b28 Mon Sep 17 00:00:00 2001
From: Rin <144466399+rin259@users.noreply.github.com>
Date: Sun, 15 Mar 2026 22:17:12 +0800
Subject: [PATCH] fix: add null check for delta in streaming mode to prevent
 AttributeError when tool calls are returned (#6365)

---
 astrbot/core/provider/sources/openai_source.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/astrbot/core/provider/sources/openai_source.py b/astrbot/core/provider/sources/openai_source.py
index c40234ed4..982118619 100644
--- a/astrbot/core/provider/sources/openai_source.py
+++ b/astrbot/core/provider/sources/openai_source.py
@@ -322,7 +322,7 @@ class ProviderOpenAIOfficial(Provider):
             if reasoning:
                 llm_response.reasoning_content = reasoning
                 _y = True
-            if delta.content:
+            if delta and delta.content:
                 # Don't strip streaming chunks to preserve spaces between words
                 completion_text = self._normalize_content(delta.content, strip=False)
                 llm_response.result_chain = MessageChain(