DeepNet: Scaling Transformers to 1,000 Layers
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Abstract (arXiv)
In this paper, we propose a simple yet effective method to stabilize extremely deep Transformers. Specifically, we introduce a new normalization function (DeepNorm) to modify the residual connection in Transformer, accompanying with theoretically derived initialization. In-depth theoretical analysis shows that model updates can be bounded in a stable way. The proposed method combines the best of two worlds, i.e., good performance of Post-LN and stable training of Pre-LN, making DeepNorm a preferred alternative. We successfully scale Transformers up to 1,000 layers (i.e., 2,500 attention and feed-forward network sublayers) without difficulty, which is one order of magnitude deeper than previous deep Transformers. Remarkably, on a multilingual benchmark with 7,482 translation directions, our 200-layer model with 3.2B parameters significantly outperforms the 48-layer state-of-the-art model with 12B parameters by 5 BLEU points, which indicates a promising scaling direction.
Key facts. Cited by 178 papers in the map (data through 14 Oct 2026). Builds on 46 of its 74 references that are in the map. First posted on arXiv 1 Mar 2022.
Builds on
46 of 74 references.
References · 46
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- 2019On the Variance of the Adaptive Learning Rate and Beyondcited by 772
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- 2019Visualizing and Understanding the Effectiveness of BERTcited by 67
- 2019Improving Deep Transformer with Depth-Scaled Initialization and Merged Attentioncited by 59
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- 2020Optimizing Deeper Transformers on Small Datasetscited by 42
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Citing papers per year: 2022: 32; 2023: 39; 2024: 17; 2025: 26; 2026: 64.
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