Challenge: Increasing the number of parameters in language models is a common strategy to enhance performance, but smaller models often underperform compared to their larger counterparts due to their reduced representational capacity.
Approach: They use the Pythia model suite to analyse the training dynamics that underlie this phenomenon.
Outcome: The proposed model suite enables us to examine the training dynamics of small models.

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It’s Not Just Size That Matters: Small Language Models Are Also Few-Shot Learners (2021.naacl-main)

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Challenge: Pretraining ever-larger language models on massive corpora requires enormous amounts of compute.
Approach: They propose to convert textual inputs into cloze questions that contain a task description . they also exploit unlabeled data to improve their performance .
Outcome: The proposed model outperforms GPT-3 with PET/iPET with cloze questions and unlabeled data.
Stable Language Model Pre-training by Reducing Embedding Variability (2024.emnlp-main)

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Challenge: Stable pre-training is essential for achieving better-performing language models, but tracking pre-train stability is impractical due to high computational costs.
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Small Models, Big Impact: Efficient Corpus and Graph-Based Adaptation of Small Multilingual Language Models for Low-Resource Languages (2025.acl-srw)

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Challenge: Low-resource languages (LRLs) face significant challenges in natural language processing due to limited data.
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Revisiting Scaling Laws for Language Models: The Role of Data Quality and Training Strategies (2025.acl-long)

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Challenge: Existing scaling laws suggest augmenting model size and training data results in enhanced performance, but recent studies reveal deviations, particularly in large language models, where performance improvements decelerate—a phenomenon known as sub-scaling.
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The Trade-offs of Domain Adaptation for Neural Language Models (2022.acl-long)

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Challenge: Neural Language Models (LMs) trained on large generic training sets have been shown to be effective at adapting to smaller, specific target domains for language modeling and other downstream tasks.
Approach: They propose a framework for a Neural Language Models (LM) to be presented in a common framework.
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Small Language Models Are Good Too: An Empirical Study of Zero-Shot Classification (2024.lrec-main)

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Challenge: Using small language models, we challenge the dominance of large models in text classification by prompting.
Approach: They compare the performance of small and large language models in a zero-shot context using different architectures and scoring functions.
Outcome: The proposed model outperforms large models in a zero-shot context.
Language Models are Few-Shot Butlers (2021.emnlp-main)

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Challenge: Pretrained language models demonstrate strong performance in most NLP tasks when fine-tuned on small task-specific datasets.
Approach: They propose a two-stage procedure to learn from a small set of demonstrations and a simple reinforcement learning algorithm to improve by interacting with an environment.
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Scaling Laws for BERT in Low-Resource Settings (2023.findings-acl)

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Challenge: Large language models require huge training corpora, which is unobtainable for most NLP practitioners.
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On the Importance of Effectively Adapting Pretrained Language Models for Active Learning (2022.acl-short)

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Challenge: Recent active learning approaches in NLP use off-the-shelf pretrained language models (LMs) . a poor training strategy can be catastrophic for AL, authors argue .
Approach: They propose to first adapt the pretrained LM to the target task and then use it for AL.
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Are Larger Pretrained Language Models Uniformly Better? Comparing Performance at the Instance Level (2021.findings-acl)

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Challenge: Larger models have higher out-of-distribution robustness, while smaller models have lower accuracy on rare subgroups.
Approach: They develop statistically rigorous methods to investigate whether large models are better on every instance . they find that individual predictions are highly sensitive to noise in the randomness in training .
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