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This is a reproduction of the BitNet b1.58 paper. The models are trained with RedPajama dataset for 100B tokens. The hypers, as well as two-stage LR and weight decay, are implemented as suggested in their following paper. All models are open-source in the repo. We will train larger models and/or more tokens when resource is available.

Results

PPL and zero-shot accuracy:

Models PPL ARCe ARCc HS BQ OQ PQ WGe Avg
FP16 700M (reported) 12.33 54.7 23.0 37.0 60.0 20.2 68.9 54.8 45.5
BitNet b1.58 700M (reported) 12.87 51.8 21.4 35.1 58.2 20.0 68.1 55.2 44.3
BitNet b1.58 700M (reproduced) 12.78 51.4 21.8 35.0 59.6 20.6 67.5 55.4 44.5
FP16 1.3B (reported) 11.25 56.9 23.5 38.5 59.1 21.6 70.0 53.9 46.2
BitNet b1.58 1.3B (reported) 11.29 54.9 24.2 37.7 56.7 19.6 68.8 55.8 45.4
BitNet b1.58 1.3B (reproduced) 11.19 55.8 23.7 37.6 59.0 20.2 69.2 56.0 45.9
FP16 3B (reported) 10.04 62.1 25.6 43.3 61.8 24.6 72.1 58.2 49.7
BitNet b1.58 3B (reported) 9.91 61.4 28.3 42.9 61.5 26.6 71.5 59.3 50.2
BitNet b1.58 3B (reproduced) 9.88 60.9 28.0 42.3 58.3 26.0 71.4 60.3 49.6

The differences between the reported numbers and the reproduced results are possibly variances from the training data processing, seeds, or other random factors.

Evaluation

You can now run with model with llama.cpp

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