> Canonical page: https://posttrainllm.com/inspiration/transformer-explainer

A note of thanks · Learning tools

# Transformer Explainer

A live, inspectable GPT-2 in the browser gives learners something to manipulate after a forward-pass walkthrough. It sets a useful bar for explanations that invite investigation.

01 · The idea

## What stayed with us

A live, inspectable GPT-2 in the browser gives learners something to manipulate after a forward-pass walkthrough. It sets a useful bar for explanations that invite investigation.

02 · The local translation

## What we did with it

Our ground-up sessions pair annotated source with outside interactive explanations. Transformer Explainer is a good companion because a learner can inspect a live model after reading about attention and the forward pass, rather than relying only on a static diagram.

03 · The boundary

## Where the comparison stops

It is an external teaching project, not a PostTrainLLM runtime or a validation of our training results. Our reading list retains it as a learning reference; our own code and tests remain the authority for the local implementation.

Source trail

## Follow the work

- Original project [Transformer Explainer ↗](https://poloclub.github.io/transformer-explainer/)
- Our context [Our external reading list ↗](https://posttrainllm.com/docs/learn/external-references/)

Independent appreciation. The named projects have not endorsed or affiliated with PostTrainLLM.