Flextron: Many-in-One Flexible Large Language Model
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Abstract (arXiv)
Training modern LLMs is extremely resource intensive, and customizing them for various deployment scenarios characterized by limited compute and memory resources through repeated training is impractical. In this paper, we introduce Flextron, a network architecture and post-training model optimization framework supporting flexible model deployment. The Flextron architecture utilizes a nested elastic structure to rapidly adapt to specific user-defined latency and accuracy targets during inference with no additional fine-tuning required. It is also input-adaptive, and can automatically route tokens through its sub-networks for improved performance and efficiency. We present a sample-efficient training method and associated routing algorithms for systematically transforming an existing trained LLM into a Flextron model. We evaluate Flextron on the GPT-3 and LLama-2 family of LLMs, and demonstrate superior performance over multiple end-to-end trained variants and other state-of-the-art elastic networks, all with a single pretraining run that consumes a mere 7.63% tokens compared to original pretraining.
Key facts. Cited by 42 papers in the map (data through 7 Oct 2026). Builds on 42 of its 53 references that are in the map. First posted on arXiv 11 Jun 2024.
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References · 42
- 2020Language Models are Few-Shot Learnerscited by 32,199
- 2023Llama 2: Open Foundation and Fine-Tuned Chat Modelscited by 12,865
- 2022Chain-of-Thought Prompting Elicits Reasoning in Large Language Modelscited by 12,302
- 2020Measuring Massive Multitask Language Understandingcited by 7,768
- 2020Scaling Laws for Neural Language Modelscited by 6,411
- 2018Think you have Solved Question Answering? Try ARC, the AI2 Reasoning Challengecited by 4,710
- 2019HellaSwag: Can a Machine Really Finish Your Sentence?cited by 4,018
- 2021Switch Transformers: Scaling to Trillion Parameter Models with Simple and Efficient Sparsitycited by 3,014
- 2022Training Compute-Optimal Large Language Modelscited by 2,927
- 2019PIQA: Reasoning about Physical Commonsense in Natural Languagecited by 2,818
- 2020The Pile: An 800GB Dataset of Diverse Text for Language Modelingcited by 2,346
- 2022GPTQ: Accurate Post-Training Quantization for Generative Pre-trained Transformerscited by 1,838
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- 2016The LAMBADA dataset: Word prediction requiring a broad discourse contextcited by 960
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