Floe: Federated Specialization for Real-Time LLM-SLM Inference

Fuente: arXiv
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Hauptverfasser: Tian, Chunlin, Tam, Kahou, Wu, Yebo, Zhong, Shuaihang, Li, Li, Lane, Nicholas D., Xu, Chengzhong
Format: Preprint
Veröffentlicht: 2026
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author Tian, Chunlin
Tam, Kahou
Wu, Yebo
Zhong, Shuaihang
Li, Li
Lane, Nicholas D.
Xu, Chengzhong
author_facet Tian, Chunlin
Tam, Kahou
Wu, Yebo
Zhong, Shuaihang
Li, Li
Lane, Nicholas D.
Xu, Chengzhong
contents Deploying large language models (LLMs) in real-time systems remains challenging due to their substantial computational demands and privacy concerns. We propose Floe, a hybrid federated learning framework designed for latency-sensitive, resource-constrained environments. Floe combines a cloud-based black-box LLM with lightweight small language models (SLMs) on edge devices to enable low-latency, privacy-preserving inference. Personal data and fine-tuning remain on-device, while the cloud LLM contributes general knowledge without exposing proprietary weights. A heterogeneity-aware LoRA adaptation strategy enables efficient edge deployment across diverse hardware, and a logit-level fusion mechanism enables real-time coordination between edge and cloud models. Extensive experiments demonstrate that Floe enhances user privacy and personalization. Moreover, it significantly improves model performance and reduces inference latency on edge devices under real-time constraints compared with baseline approaches.
format Preprint
id arxiv_https___arxiv_org_abs_2602_14302
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Floe: Federated Specialization for Real-Time LLM-SLM Inference
Tian, Chunlin
Tam, Kahou
Wu, Yebo
Zhong, Shuaihang
Li, Li
Lane, Nicholas D.
Xu, Chengzhong
Distributed, Parallel, and Cluster Computing
Machine Learning
Deploying large language models (LLMs) in real-time systems remains challenging due to their substantial computational demands and privacy concerns. We propose Floe, a hybrid federated learning framework designed for latency-sensitive, resource-constrained environments. Floe combines a cloud-based black-box LLM with lightweight small language models (SLMs) on edge devices to enable low-latency, privacy-preserving inference. Personal data and fine-tuning remain on-device, while the cloud LLM contributes general knowledge without exposing proprietary weights. A heterogeneity-aware LoRA adaptation strategy enables efficient edge deployment across diverse hardware, and a logit-level fusion mechanism enables real-time coordination between edge and cloud models. Extensive experiments demonstrate that Floe enhances user privacy and personalization. Moreover, it significantly improves model performance and reduces inference latency on edge devices under real-time constraints compared with baseline approaches.
title Floe: Federated Specialization for Real-Time LLM-SLM Inference
topic Distributed, Parallel, and Cluster Computing
Machine Learning
url https://arxiv.org/abs/2602.14302