Keras
In plain terms
A high-level, user-friendly neural-network API.
Going deeper
Keras provides a simple, readable interface for building and training neural networks, running atop TensorFlow. It lowers the barrier to deep learning.
Under the hood
Prioritizes ease and fast prototyping; abstracts low-level details while allowing customization.
Examples
Quick prototyping, beginners, TensorFlow models, education, fast iteration.
Think of it like...
Like a beginner-friendly control panel over a powerful engine.