With the advancement of technology, we are surrounded by an increasing number of intelligent assistants. Not only can they understand our words, but they can also produce impressive articles. But have you ever wondered how these AI assistants "read" our thoughts and craft those astonishing pieces of text?

Behind AI writing assistants lies a powerful "brain"—the Transformer model. This model is akin to a magical magician, capable of transforming our input text into a variety of outputs. Whether it's composing poetry, writing stories, or coding, it handles them all with ease.

Although the Transformer model is extremely powerful, its workings are complex, often deterring many. To make this model more accessible and understandable, Transformer Explainer was born.

image.png

This is an interactive visualization tool designed specifically for non-experts. With this tool, we can run the GPT-2 model directly in our browser, observing in real-time how the model "reads" our text and predicts the next word.

Within the Transformer model, there is a parameter called "temperature" that controls whether the model's "mind-reading" is more deterministic or random. Through Transformer Explainer, we can adjust this temperature parameter in real-time to see how it affects the model's predictions.

When we lower the temperature, the model's predictions become more certain, much like a serious scholar whose answers are always conventional. Conversely, when we increase the temperature, the model's predictions become more random, akin to a poetic imagination that always surprises us.

image.png

To help beginners better understand the Transformer model, Transformer Explainer employs a multi-level abstraction approach. We can start with a high-level overview of the model's structure and then delve deeper into the low-level mathematical operations.

This design is like a Russian nesting doll, where each layer reveals deeper content without overwhelming the user. Through this method, we can see the model's overall structure and delve into each detail to understand its workings.

The greatest feature of Transformer Explainer is its interactivity. We can not only adjust the model parameters in real-time but also input our own text to see how the model "reads" it and provides predictions.

This real-time interactive approach allows us to more intuitively experience the model's "mind-reading" capabilities, making the learning process more engaging and vivid.

Transformer Explainer is like a key that unlocks the secrets of AI writing assistants, allowing us to explore in depth. With this tool, we can not only better understand the Transformer model but also gain a deeper insight into how AI writing assistants operate.

As AI technology continues to evolve, we believe more people will use tools like Transformer Explainer to demystify AI, enabling it to serve us better.

Paper link: https://arxiv.org/pdf/2408.04619

Project link: https://poloclub.github.io/transformer-explainer/