fix model names.

app.py

@@ -105,6 +105,11 @@ def generate_srt(segments):
     return srt.compose(subtitles)
 
 def prepare_chapter_prompt(srt_text):
+    """
+    Prepare a complete prompt (system + user instructions) for ChatGPT models.
+    Although the prompt is in English, it instructs the model to output chapter headers in the same language as the provided SRT transcript.
+    The output format should be one chapter per line: "mm:ss Chapter Title".
+    """
     system_prompt = (
         "You are a highly skilled video content segmentation and optimization expert. "
         "Your task is to analyze a transcript of a YouTube video provided in SRT format and produce engaging and concise chapter headers. "
@@ -113,6 +118,7 @@ def prepare_chapter_prompt(srt_text):
         "- 'Chapter Title' must be a catchy, audience-friendly title that summarizes the key idea or transition at that point in the video.\n\n"
         "IMPORTANT: Although these instructions are in English, please ensure that your output is in the same language as the provided SRT transcript."
     )
+    
     user_prompt = (
         "Below is the transcript of a YouTube video in SRT format:\n\n"
         "```\n"
@@ -122,7 +128,9 @@ def prepare_chapter_prompt(srt_text):
         "Each chapter header should be formatted as:\n"
         "mm:ss Chapter Title"
     )
-    return system_prompt + "\n\n" + user_prompt
+    
+    final_prompt = system_prompt + "\n\n" + user_prompt
+    return final_prompt
 
 def format_prompt_html(prompt):
     """
@@ -184,7 +192,7 @@ iface = gr.Interface(
     description=(
         "Upload an audio file (e.g., MP3) of your YouTube video and select the audio language. "
         "The app will transcribe the audio using Whisper, generate subtitles in SRT format, "
-        "and prepare a single, complete prompt that instructs ChatGPT/GPT-4 to generate a chapter breakdown in the format 'mm:ss Chapter Title'.\n\n"
+        "and prepare a single, complete prompt that instructs ChatGPT -> o1 model to generate a chapter breakdown in the format 'mm:ss Chapter Title'.\n\n"
         "Click the 'Copy Prompt' button to copy the entire prompt, and a brief 'Prompt Copied!' message will appear."
     )
 )