diff --git a/backend/app/services/pdf_generator.py b/backend/app/services/pdf_generator.py
index 4c2b3e88..9e4acd8b 100644
--- a/backend/app/services/pdf_generator.py
+++ b/backend/app/services/pdf_generator.py
@@ -36,11 +36,13 @@ class PDFGenerator:
         root_dir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(current_file))))
         
         # Try Noto Serif TC first (best Chinese support)
+        # Use static font instead of variable font for better ReportLab compatibility
         noto_font_path = os.path.join(
             root_dir,
             'Cactus_Classical_Serif,Noto_Serif_TC',
             'Noto_Serif_TC',
-            'NotoSerifTC-VariableFont_wght.ttf'
+            'static',
+            'NotoSerifTC-Regular.ttf'  # Use static Regular instead of Variable font
         )
         
         print(f"Attempting to load Noto Serif TC from: {noto_font_path}")
diff --git a/tradingagents/dataflows/openai.py b/tradingagents/dataflows/openai.py
index 6f182c43..1a93d460 100644
--- a/tradingagents/dataflows/openai.py
+++ b/tradingagents/dataflows/openai.py
@@ -42,7 +42,7 @@ def get_stock_news_openai(query, start_date, end_date):
                 "search_context_size": "low",
             }
         ],
-        temperature=0.7,  # Reduced from 1.0 to prevent character errors like '煉' and stabilize output
+        temperature=0.5,  # Reduced to 0.5 for maximum accuracy and consistency
         max_output_tokens=4096,
         top_p=1,
         store=True,
@@ -90,7 +90,7 @@ def get_global_news_openai(curr_date, look_back_days=7, limit=5):
                 "search_context_size": "low",
             }
         ],
-        temperature=0.7,  # Reduced from 1.0 to prevent character errors and stabilize output
+        temperature=0.5,  # Reduced to 0.5 for maximum accuracy and consistency
         max_output_tokens=4096,
         top_p=1,
         store=True,
@@ -137,7 +137,7 @@ def get_fundamentals_openai(ticker, curr_date):
                 "search_context_size": "low",
             }
         ],
-        temperature=0.7,  # Reduced from 1.0 to prevent character errors and stabilize output
+        temperature=0.5,  # Reduced to 0.5 for maximum accuracy and consistency
         max_output_tokens=4096,
         top_p=1,
         store=True,