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LLM Architecture: GPT-2
The fundamentals every model since has inherited.
Tokenized text
GPT-2 model (124M)
Token embedding layer
Positional embedding layer
Dropout
Transformer block
1 of 12
LayerNorm 1
Causal multi-head attention
Dropout
LayerNorm 2
Feed forward
Dropout
Transformer block
2–11 of 12
Transformer block
12 of 12
Final LayerNorm
Output layer
Chapters
8 of 8
01
LLM Tokenization
2 min
02
From Raw Text to LLM Training Data
6 min
03
Layer Normalization
3 min
04
Attention, Step by Step
9 min
05
Dropout
4 min
06
Shortcut Connections
4 min
07
Feed-Forward Network
4 min
08
Output Layer
3 min
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