UFG launches Lumi, an open 4-billion-parameter language model built for Portuguese

Medium Oct. 31, 2026 · Estadão (TecMundo)

Published in edition no. 2 of Noticiário do Joãozinho · Saturday, October 31, 2026, evening edition

Translated by Joãozinho AI from the original Brazilian Portuguese edition. Facts, numbers and sources are the same as in the original; quotes, video titles and source names stay in their original language. Read the original in Portuguese

The Center of Excellence in Artificial Intelligence (CEIA) of the Federal University of Goiás launched Lumi on Wednesday (10/28). The open source model, with 4 billion parameters, was adapted to the Brazilian context and, according to its developers, can run on more affordable computing infrastructure. According to CEIA, it will be made available on Hugging Face for free use.

Why it matters A small, open model in Portuguese lets Brazilian companies fine-tune AI with their own data and run it locally, without depending on services billed in dollars.

Original source: Estadão (TecMundo) — https://www.estadao.com.br/tecmundo/inteligencia-artificial/lumi-conheca-o-modelo-de-ia-open-source-desenvolvido-pela-universidade-federal-de-goias/

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