Official PyTorch implementation of Gated Delta Networks: Improving Mamba2 with Delta Rule (ICLR '25).
Songlin Yang, Jan Kautz and Ali Hatamizadeh.
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For additional functionalities, such as varlen training and inference support, see FLA implementation.
Gated DeltaNet introduces a novel approach to linear transformers by combining:
- 🧠 Smart Memory Management: Intelligent memory management that knows what to keep and what to forget
- ⚡ Precise Updates: Targeted memory updates that enhance model efficiency
- 💻 Hardware Efficiency: Optimized implementation for real-world deployment
Gated DeltaNet shows exceptional performance in terms of training throughput compared to models like Mamba2 and Samba:
Our model outperforms competitors of various types(e.g. Transformer, RNN, hybrid) in terms of perplexity and zero-shot accuracy on reasoning benchmarks:
Gated DeltaNet also achieves favorable perplexity scores on long-context benchmarks:
01/22/2024: 🔥 Gated DeltaNet has been accepted to ICLR '25.12/09/2024: 🔥 Code Release: Train your own Gated DeltaNet on Slimpajama dataset- Watch this space for more exciting updates!
Launch your training with our streamlined command:
python ../pretrain.py \
--train_data_dir ${TRAIN_DATA} \
--val_data_dir ${VALIDATION_DATA} \
--output_root ${SAVE_DIR} \
--exp_name ${NAME} \
--model_name ${MODEL} \
--train_config ${CONFIG} \
--eval_iters ${EVAL_ITERS} \
--learning_rate ${LR} \
--micro_batch_size ${MICRO_BATCH_SIZE}💡 Pro Tip: Add --interactive_job --debug for interactive debugging sessions!
Please see this slurm script for training the GatedDeltaNet_H1 model with 0.4B parameters on 15B tokens. The training requires 4 nodes and can be finished in approximately 4 hours. For this run, the validation loss and perplexitty curves (1x & 2x for lengh extrapolation) are expected as follows:
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Licensed under the NVIDIA Source Code License-NC. See LICENSE for details.
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If you find this work useful, please consider:
- Starring the repository
- Citing our paper
- Contributing to the codebase
Join us in pushing the boundaries of linear transformers! 🚀
If you find Gated DeltaNet to be useful for your work, please consider citing our paper:
@inproceedings{yang2025gated,
title={Gated Delta Networks: Improving Mamba2 with Delta Rule},
author={Songlin Yang and Jan Kautz and Ali Hatamizadeh},
booktitle={The Thirteenth International Conference on Learning Representations},
year={2025},
url={https://openreview.net/forum?id=r8H7xhYPwz}
}
