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Inside an LLM
What is a Transformer?
A Transformer is the main engine inside many modern AI models. It helps AI understand text and generate the next words.
This is a simplified learning demo. It does not show the full math inside real Transformers.
Interactive Playground
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What's Happening
Press Start to step through or Run All to watch it play automatically.
Live Visualization
Statistics
Number of Tokens
Sentence Length
Current Stage
3
Processing Steps
Suggested Word
How It Works
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Text
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Tokens
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Transformer
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Understand
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Prediction
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Beginner Tips
2 tips
Transformers replaced older "recurrent" models (RNNs), they process all tokens at once instead of one by one, making them much faster to train.
The "T" in GPT stands for Transformer. Understanding this architecture is the foundation of understanding all modern AI models.
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Key Takeaway
A Transformer helps AI look at text, understand relationships between words, and predict what should come next.
Unlike older AI, a Transformer reads all words at the same time that's what makes it so fast and powerful.