Whether GPT-3.5-16k is enough or GPT-4 is mandatory ?

[RageshAntony]

I tried generating a Movie Stream platform backend. Model is GPT-3.5-16k

But I am getting no project files. Only a large file with some structure descriptions and some code files with basic code

My prompt

 develop a Python Flask backend for modern Movie Streaming and OTT platform. The database is mysql.

 The requirements are:

 The requirements document:

User Registration and Authentication:
Users should be able to create accounts and log in to the app.
User authentication should be secure and include features like password reset and email verification.
User Profile:
Users should have personalized profiles where they can view and update their information.
The profile should include options for setting preferences and managing subscriptions.
Content Catalog:
The app should have a comprehensive catalog of movies and TV shows.
Each content entry should include metadata such as title, genre, release date, cast, and director.
The catalog should support various sorting and filtering options for users to find content easily.
Search Functionality:
Users should be able to search for movies and TV shows based on keywords, titles, actors, genres, etc.
The search results should be displayed in an organized and user-friendly manner.
Content Recommendation:
The app should provide personalized content recommendations based on the user's viewing history and preferences.
Recommendations can be based on factors like genre, ratings, popularity, and user behavior.
Video Playback:
The app should support smooth video playback with features like play, pause, seek, and volume control.
It should be able to handle different video formats and resolutions.
The app should support streaming content over both Wi-Fi and cellular networks.
Subtitles and Multiple Audio Tracks:
The app should support multiple subtitle languages and give users the option to enable or disable subtitles.
It should also provide support for multiple audio tracks in different languages.
Watchlist and Favorites:
Users should be able to add movies and TV shows to their watchlist and mark them as favorites for easy access later.
User Ratings and Reviews:
Users should have the ability to rate and review movies and TV shows.
The app should display average ratings and user reviews to help others make informed viewing decisions.
Social Sharing:
Users should be able to share their favorite movies and TV shows on social media platforms or with friends via messaging apps.
Payment and Subscription:
The app should support secure payment integration for subscription plans.
Users should be able to choose from different subscription options and manage their subscriptions.
Notifications:
The app should send push notifications to users for new content releases, personalized recommendations, and other relevant updates.
Offline Viewing:
The app should allow users to download movies and TV shows for offline viewing.
Downloaded content should have an expiration period and be encrypted to prevent unauthorized access.
Admin Dashboard:
An admin dashboard should be available to manage the content catalog, user accounts, subscriptions, and analytics.
Analytics and Reporting:
The app should track user activity, such as watch history, favorites, and search patterns, for analytics and reporting purposes.
The analytics should provide insights for content curation, personalized recommendations, and business decision-making.
Device Compatibility:
The app should be compatible with various devices and screen sizes, including smartphones, tablets, and smart TVs.
It should support both Android and iOS platforms.
Please note that this is a general outline of requirements, and you may need to further refine and customize it based on your specific app's needs and target audience.


Additional instructions:
Note that, all SDKs are already installed and  no need to install any utility or SDKs. Just continue creating project files.

The created project structure is

A generated code:

from flask import Blueprint

admin_bp = Blueprint('admin', __name__)

@admin_bp.route('/manage-content', methods=['POST'])
def manage_content():
    # Content management logic goes here

@admin_bp.route('/manage-users', methods=['POST'])
def manage_users():
    # User management logic goes here

@admin_bp.route('/manage-subscriptions', methods=['POST'])
def manage_subscriptions():
    # Subscription management logic goes here

@admin_bp.route('/view-analytics', methods=['GET'])
def view_analytics():
    # Analytics and reporting logic goes here

So why like this? Whether it is due to GPT-3.5-16k model that is GPT-4 is mandatory ?