poloclub/transformer-explainer resource

Health v2 · maintenance only

Adoption not part of the score

8462 stars · 942 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

An interactive web-based visualization tool that runs a live GPT-2 model in the browser to teach how Transformer-based LLMs work. Users can experiment with their own text and observe internal Transformer components like attention and next-token prediction in real time.

Use cases

• learn how transformer models work interactively
• visualize self-attention in GPT-2
• understand next-token prediction
• teach LLM architecture to students
• experiment with temperature and top-k sampling
• run a small language model in the browser

When to choose

• you want an intuitive, interactive introduction to Transformer and GPT internals
• you are teaching or self-studying how LLMs generate text
• you want to run a live model without installing anything, right in the browser

When to avoid

• you need to train or fine-tune Transformer models
• you need state-of-the-art LLM inference performance
• you need a production NLP library rather than an educational tool

Facets

learning-resource · maturity active

data-visualization machine-learning deep-learning large-language-models education data-visualization browser interactive-visualization transformer gpt-2 llm-education in-browser-inference svelte education nodejs web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="poloclub/transformer-explainer")