feat: add toy character-level transformer language model#161
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jbrown1618 wants to merge 1 commit intomainfrom
Open
feat: add toy character-level transformer language model#161jbrown1618 wants to merge 1 commit intomainfrom
jbrown1618 wants to merge 1 commit intomainfrom
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Implement a minimal GPT-style transformer operating at character level with deliberately tiny dimensions, suitable for this library's toy scale: - Tokenizer: character-level encoding (a-z + space, vocab size 27) - softmax: numerically stable softmax utility function - TransformerBlock: single-head self-attention with causal masking, feed-forward network with ReLU, and residual connections - LanguageModel: full model composing embeddings, positional encodings, transformer block, and output projection. Supports train() via finite-difference gradients and generate() with greedy decoding. Includes comprehensive tests for all new components (36 new tests). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Summary
Implements a minimal GPT-style transformer language model operating at character level, with deliberately tiny dimensions suitable for this library's toy scale.
New Components
Tokenizer.tsTransformerBlock.tsLanguageModel.tstrain()via finite-difference gradients;generate()with greedy decodingNumberUtilities.tssoftmax()utilityArchitecture
Tests
36 new tests across 4 test files covering all new components. All 694 tests pass, build succeeds.