Update app.py

app.py

@@ -554,6 +554,7 @@ STANDARD_TEXT_MODELS = [
     "gpt-4.1-mini",
     "gpt-5.2",
     "gpt-5.2-pro",
+    "gpt-5.5",
     "gpt-5",
     "gpt-5-mini",
     "gpt-4o-2024-08-06",
@@ -666,7 +667,7 @@ def conditional_llm(
 def generate_audio(
     files: list,
     openai_api_key: str = None,
-    text_model: str = "o4-mini", #o1-2024-12-17", #"o1-preview-2024-09-12",
+    text_model: str = "gpt-5.5", #o1-2024-12-17", #"o1-preview-2024-09-12",
     reasoning_effort: str = "N/A",
     do_web_search: bool = False, 
     audio_model: str = "tts-1",
@@ -1020,7 +1021,7 @@ with gr.Blocks(title="PDF to Audio", css="""
             text_model = gr.Dropdown(
                 label="Text Generation Model",
                 choices=STANDARD_TEXT_MODELS,
-                value="gpt-5", #"o3-mini", #"o4-mini", #"o1-preview-2024-09-12", #"gpt-4o-mini",
+                value="gpt-5.5", #"o3-mini", #"o4-mini", #"o1-preview-2024-09-12", #"gpt-4o-mini",
                 info="Select the model to generate the dialogue text.",
             )
             reasoning_effort = gr.Dropdown(