diff --git a/app/ai/skill_gap_analyzer/analyzer.py b/app/ai/skill_gap_analyzer/analyzer.py
index d9c5070..ad1580f 100644
--- a/app/ai/skill_gap_analyzer/analyzer.py
+++ b/app/ai/skill_gap_analyzer/analyzer.py
@@ -52,7 +52,7 @@ async def analyze_skill_gap(skill_tags: list[str], resume_json: str) -> list[str
 
 _summary_optimize_chain = (
     ChatPromptTemplate.from_messages([("system", SUMMARY_OPTIMIZE_PROMPT), ("human", "请开始优化。")])
-    | LLM.CLAUDE_SONNET_4.create(temperature=0.3)
+    | LLM.GPT_4O.create(temperature=0.3)
     | StrOutputParser()
 )
 
@@ -73,7 +73,7 @@ async def optimize_summary(job_title: str, add_skills: list[str], original_summa
 
 _experience_optimize_chain = (
     ChatPromptTemplate.from_messages([("system", EXPERIENCE_OPTIMIZE_PROMPT), ("human", "请开始优化。")])
-    | LLM.CLAUDE_SONNET_4.create(temperature=0.3)
+    | LLM.GPT_4O.create(temperature=0.3)
     | StrOutputParser()
 )