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arXiv · 2502.07864

TransMLA: Multi-Head Latent Attention Is All You Need

Fanxu Meng·Pingzhi Tang·Xiaojuan Tang·Zengwei Yao·Xing Sun·Muhan Zhang
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Abstract

In this paper, we present TransMLA, a framework that seamlessly converts any GQA-based pre-trained model into an MLA-based model. Our approach enables direct compatibility with DeepSeek's codebase, allowing these models to fully leverage DeepSeek-specific optimizations such as vLLM and SGlang. By compressing 93% of the KV cache in LLaMA-2-7B, TransMLA achieves a 10.6x inference speedup at an 8K context length while preserving meaningful output quality. Additionally, the model requires only 6 billion tokens for fine-tuning to regain performance on par with the original across multiple benchmarks. TransMLA offers a practical solution for migrating GQA-based models to the MLA structure. When combined with DeepSeek's advanced features, such as FP8 quantization and Multi-Token Prediction, even greater inference acceleration can be realized.

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Fanxu Meng, Pingzhi Tang, Xiaojuan Tang, Zengwei Yao, Xing Sun, Muhan Zhang. 2025-06-12. TransMLA: Multi-Head Latent Attention Is All You Need. https://arxiv.org/abs/2502.07864

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