GPT Math Explained: The Full Forward Pass Beyond Attention
How does GPT math work end to end? One training step from token IDs through Q/K/V, attention, MLP, logits, cross-entropy loss, backprop, and AdamW.
How does GPT math work end to end? One training step from token IDs through Q/K/V, attention, MLP, logits, cross-entropy loss, backprop, and AdamW.
How does the Adam optimizer work? Derive momentum, RMSprop and bias correction, see why AdamW decouples weight decay, and walk a numeric update by hand.