To foster the neural encoding of Portuguese, this paper contributes foundation encoder models that represent an expansion of the still very scarce ecosystem of large language models specifically developed for this language that are fully open, in the sense that they are open source and openly distributed for free under an open license for any purpose, thus including research and commercial usages. Like most languages other than English, Portuguese is low-resourced in terms of these foundational language resources, there being the inaugural 900 million parameter Albertina and 335 million Bertimbau. Taking this couple of models as an inaugural set, we present the extension of the ecosystem of state-of-the-art open encoders for Portuguese with a larger, top performance-driven model with 1.5 billion parameters, and a smaller, efficiency-driven model with 100 million parameters. While achieving this primary goal, further results that are relevant for this ecosystem were obtained as well, namely new datasets for Portuguese based on the SuperGLUE benchmark, which we also distribute openly.

为了促进葡萄牙语的神经编码，本论文提出了一些基础的编码器模型，这些模型是为这种语言开发的大型语言模型稀缺的生态系统的扩展，而且都是免费开放的，可以用于任何目的，包括研究和商业用途。此外，我们还获得了对其生态系统有意义的进一步结果，即基于SuperGLUE基准的葡萄牙语新数据集，我们也进行了开放分发。

促进葡萄牙语开放神经编码器生态系统与Albertina PT*系列的发展