Gl\'orIA - A Generative and Open Large Language Model for Portuguese

• URL: http://arxiv.org/abs/2402.12969v1
• Date: Tue, 20 Feb 2024 12:36:40 GMT
• Title: Gl\'orIA - A Generative and Open Large Language Model for Portuguese
• Authors: Ricardo Lopes and Jo\~ao Magalh\~aes and David Semedo
• Abstract summary: We introduce Gl'orIA, a robust European Portuguese decoder LLM. To pre-train Gl'orIA, we assembled a comprehensive PT-PT text corpus comprising 35 billion tokens from various sources. Evaluation shows that Gl'orIA significantly outperforms existing open PT decoder models in language modeling.
• Score: 4.782288068552145
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Significant strides have been made in natural language tasks, largely attributed to the emergence of powerful large language models (LLMs). These models, pre-trained on extensive and diverse corpora, have become increasingly capable of comprehending the intricacies of language. Despite the abundance of LLMs for many high-resource languages, the availability of such models remains limited for European Portuguese. We introduce Gl\'orIA, a robust European Portuguese decoder LLM. To pre-train Gl\'orIA, we assembled a comprehensive PT-PT text corpus comprising 35 billion tokens from various sources. We present our pre-training methodology, followed by an assessment of the model's effectiveness on multiple downstream tasks. Additionally, to evaluate our models' language modeling capabilities, we introduce CALAME-PT (Context-Aware LAnguage Modeling Evaluation for Portuguese), the first Portuguese zero-shot language-modeling benchmark. Evaluation shows that Gl\'orIA significantly outperforms existing open PT decoder models in language modeling and that it can generate sound, knowledge-rich, and coherent PT-PT text. The model also exhibits strong potential for various downstream tasks.

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