arXiv Computation and Language

Strong Teacher Not Needed? On Distillation in LLM Pretraining

The paper investigates whether a strong teacher is necessary for knowledge distillation in large language model pretraining. By varying teacher and student sizes and token budgets, the authors create strong‑to‑weak, same‑level, and weak‑to‑strong teacher‑student pairs and evaluate distillation effectiveness. They find that even small, undertrained teachers can improve larger students when losses are properly mixed, and that pushing teachers to be stronger can saturate or reverse gains, while distillation mainly boosts generalization rather than in‑domain fitting.

arXiv Machine Learning
Oct 9

KDFP: A first-principles approach to knowledge distillation in large language models

KDFP is a new white‑box methodology for general knowledge distillation in large language models, addressing a gap left by prior work that focused mainly on post‑training abilities such as instruction following and chain‑of‑thought reasoning. The authors evaluate lessons from earlier studies and conduct new experiments to design a distillation approach tailored to modern LLMs. KDFP achieves 1.6%–4.9% higher performance across nine benchmarks and improves training efficiency by up to 99.1% through reduced temporary parameters.

By Ryan Swift, Konstantinos Psounis
arXiv Machine Learning
Jul 7

Effective Distillation to Hybrid xLSTM Architectures

arXiv:2603. 15590v2 Announce Type: replace Abstract: There have been numerous attempts to distill quadratic attention-based large language models (LLMs) into sub-quadratic linearized architectures.

By Lukas Hauzenberger, Niklas Schmidinger, Thomas Schmied, Anamaria-Roberta Hartl, David Stap, Pieter-Jan Hoedt, Maximilian Beck, Sebastian B\"ock, G\"unter Klambauer, Sepp Hochreiter
arXiv Machine Learning
Jul 14

Reference-Based Distillation Detection in LLMs

arXiv:2607. 09692v1 Announce Type: new Abstract: Model distillation -- training on outputs from stronger third-party models -- is widely used to boost performance, but raises concerns about unfair advantages and policy violations.

By Rajat Rawat, Sizhe Chen, Akshay Anand, Michael Duan, Bob Rotsted, Sewon Min
arXiv Computer Vision
Aug 26

IDeaL: Data-Free Multi-Teacher Distillation via Improved Dead Leaves

The paper introduces IDeaL, a data‑free multi‑teacher distillation technique that generates teacher‑specific, improved samples using decorrelation losses at patch and image levels. By tailoring noise to each teacher, IDeaL produces strong student models that capture complementary teacher information and achieve results close to those distilled from real images. Experiments demonstrate that with only 1,000 images, students trained on IDeaL samples match or exceed the performance of students distilled from a 1,000‑image subset of ImageNet.

By Feyza Yavuz, Mert B\"ulent Sar{\i}y{\i}ld{\i}z, Diane Larlus