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Model: Mungert/Gemma-3-Gaia-PT-BR-4b-it-GGUF
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---
library_name: transformers
license: gemma
language:
- pt
base_model:
- google/gemma-3-4b-pt
---
# <span style="color: #7FFF7F;">Gemma-3-Gaia-PT-BR-4b-it GGUF Models</span>
## <span style="color: #7F7FFF;">Model Generation Details</span>
This model was generated using [llama.cpp](https://github.com/ggerganov/llama.cpp) at commit [`7f4fbe51`](https://github.com/ggerganov/llama.cpp/commit/7f4fbe5183b23b6b2e25fd1ccc5d1fa8bb010cb7).
---
## <span style="color: #7FFF7F;">Quantization Beyond the IMatrix</span>
I've been experimenting with a new quantization approach that selectively elevates the precision of key layers beyond what the default IMatrix configuration provides.
In my testing, standard IMatrix quantization underperforms at lower bit depths, especially with Mixture of Experts (MoE) models. To address this, I'm using the `--tensor-type` option in `llama.cpp` to manually "bump" important layers to higher precision. You can see the implementation here:
👉 [Layer bumping with llama.cpp](https://github.com/Mungert69/GGUFModelBuilder/blob/main/model-converter/tensor_list_builder.py)
While this does increase model file size, it significantly improves precision for a given quantization level.
### **I'd love your feedback—have you tried this? How does it perform for you?**
---
<a href="https://readyforquantum.com/huggingface_gguf_selection_guide.html" style="color: #7FFF7F;">
Click here to get info on choosing the right GGUF model format
</a>
---
<!--Begin Original Model Card-->
# Model Card for GAIA (Gemma-3-Gaia-PT-BR-4b-it)
**GAIA** is an open, state-of-the-art language model for Brazilian Portuguese. It was developed by continuously pre-training the `google/gemma-3-4b-pt` model on an extensive, high-quality corpus of Portuguese data.
The goal of GAIA is to democratize access to cutting-edge AI technology in Brazil, enabling developers, researchers, and organizations to build innovative solutions on a robust and reliable technological foundation.
## Model Details
### Model Description
**GAIA** was developed through a partnership between **The Brazilian Association of AI (ABRIA)**, the **Center of Excellence in Artificial Intelligence (CEIA) at the Federal University of Goiás (UFG)**, startups **Nama** and **Amadeus AI**, and **Google DeepMind**.
The development process started with the base model `google/gemma-3-4b-pt` and involved two main stages:
1. **Continuous Pre-training:** The model was trained on a large, high-quality Portuguese dataset totaling approximately **13 billion tokens**. This corpus includes a variety of domains, such as scientific articles and Wikipedia data in Portuguese, ensuring a deep understanding of the language and its contexts.
2. **Instruction-Following Capability Restoration:** To enable the model to follow instructions without traditional supervised fine-tuning (SFT), a weight merging operation was applied. This technique, described in the paper *“Balancing Continuous Pre-Training and Instruction Fine-Tuning: Optimizing Instruction-Following in LLMs”*, allows the model to integrate the knowledge acquired during continuous pre-training with the ability to interact in a chat format and follow instructions.
- **Developed by:** The Brazilian Association of AI (ABRIA), the Center of Excellence in Artificial Intelligence (CEIA-UFG), Nama, Amadeus AI, and Google DeepMind.
- **Model:** GAIA
- **Model type:** Causal decoder-only Transformer-based language model.
- **Language(s):** Brazilian Portuguese (pt-BR)
- **License:** Gemma
- **Based on:** `google/gemma-3-4b-pt`
### Team
This project was made possible by the contributions of the following individuals:
- Dr. Celso Gonçalves Camilo-Junior
- Dr. Sávio Salvarino Teles de Oliveira
- Me. Lucas Araujo Pereira
- Marcellus Amadeus
- Daniel Fazzioni
- Artur Matos Andrade Novais
- Salatiel Abraão Avelar Jordão
### Model Sources
- **Repository:** [CEIA-UFG/Gemma-3-Gaia-PT-BR-4b-it](https://huggingface.co/CEIA-UFG/Gemma-3-Gaia-PT-BR-4b-it)
- **Paper (Merge Methodology):** [Balancing Continuous Pre-Training and Instruction Fine-Tuning: Optimizing Instruction-Following in LLMs](https://arxiv.org/pdf/2410.10739)
## Uses
The model is designed for text generation and conversational tasks in Portuguese.
### Direct Use
GAIA can be used directly for chat, question answering, summarization, creative content generation, and other tasks requiring natural language understanding and generation in Portuguese.
### Downstream Use
GAIA serves as an excellent base model for fine-tuning on specific tasks, such as:
- Sentiment analysis in Portuguese.
- Retrieval-Augmented Generation (RAG) systems for corporate knowledge bases.
- Document classification.
- Specialized customer service chatbots.
### Out-of-Scope Use
This model should not be used for high-stakes, critical decisions without human oversight. Its use for generating malicious, offensive, or illegal content, or for deceptively impersonating a human, is outside the intended scope. The model's performance in languages other than Portuguese will be significantly degraded.
## Bias, Risks, and Limitations
Like any language model, GAIA reflects the biases present in its training data. Although the training corpus was curated with a focus on high quality, it may contain social and cultural biases from sources like Wikipedia and scientific articles. Therefore, the model may generate content that perpetuates existing stereotypes.
Furthermore, the model can "hallucinate," meaning it can generate information that appears factual but is not true. We strongly recommend verifying critical facts generated by the model before any use.
### Recommendations
Users (both direct and downstream) should be aware of the model's risks, biases, and limitations. Implementing safeguards and content moderation is recommended, especially in public-facing applications. Human supervision is crucial for sensitive use cases.
## Training Details
### Training Data
The continuous pre-training was performed on a corpus of approximately **13 billion tokens** in Portuguese. The data selection prioritized high quality and diversity, including sources such as:
- **Scientific Articles in Portuguese:** To provide the model with more formal and technical knowledge.
- **Portuguese Wikipedia:** To cover a wide range of general knowledge.
A rigorous cleaning and filtering process was applied to ensure the highest possible data quality.
### Training Procedure
The training was conducted on a **DGX infrastructure with NVIDIA H100 GPUs**, using between 3 and 5 GPUs in parallel.
#### Training Hyperparameters
- **Training regime:** Mixed Precision (bf16)
- **Global Batch Size:** 4 million tokens
## Evaluation
The model was evaluated on a set of multiple-choice benchmarks in Portuguese, comparing its performance against the base model, `google/gemma-3-4b-it`. The benchmarks include BlueX (a compilation of multiple-choice questions), and questions from the ENEM (Brazilian High School National Exam) and OAB (Brazilian Bar Exam).
### Results
| Benchmark | `google/gemma-3-4b-it` (Baseline) | GAIA (Our Model) |
|------------------|-----------------------------------|------------------|
| BlueX | **0.6630** | 0.6575 |
| ENEM 2024 | 0.6556 | **0.7000** |
| ENEM (General) | 0.7416 | **0.7486I** |
| OAB (Bar Exam) | **0.4502** | 0.4416 |
#### Summary
The results indicate that continuous pre-training on Portuguese data had a notable impact on the model's performance. **GAIA** showed a significant improvement on the **ENEM 2024** benchmark, outperforming the Google base model. On other benchmarks like BlueX and OAB, its performance is competitive and very close to the original model's, suggesting that the additional training process maintained the model's general capabilities while enhancing its knowledge in specific Portuguese-language domains.
## Citation
If you use this model in your research or application, please cite our work.
**BibTeX:**
```bibtex
@misc{gaia-gemma-3-4b-2025,
title={GAIA: An Open Language Model for Brazilian Portuguese},
author={CAMILO-JUNIOR, C. G.; OLIVEIRA, S. S. T.; PEREIRA, L. A.; AMADEUS, M.; FAZZIONI, D.; NOVAIS, A. M. A.; JORDÃO, S. A. A.},
year={2025},
publisher={Hugging Face},
journal={Hugging Face repository},
howpublished={\url{[https://huggingface.co/CEIA-UFG/Gemma-3-Gaia-PT-BR-4b-it](https://huggingface.co/CEIA-UFG/Gemma-3-Gaia-PT-BR-4b-it)}}
}
<!--End Original Model Card-->
---
# <span id="testllm" style="color: #7F7FFF;">🚀 If you find these models useful</span>
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The full Open Source Code for the Quantum Network Monitor Service available at my github repos ( repos with NetworkMonitor in the name) : [Source Code Quantum Network Monitor](https://github.com/Mungert69). You will also find the code I use to quantize the models if you want to do it yourself [GGUFModelBuilder](https://github.com/Mungert69/GGUFModelBuilder)
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Choose an **AI assistant type**:
- `TurboLLM` (GPT-4.1-mini)
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- `TestLLM` (Experimental CPU-only)
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I’m pushing the limits of **small open-source models for AI network monitoring**, specifically:
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🟢 **TurboLLM** – Uses **gpt-4.1-mini** :
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### Final Word
I fund the servers used to create these model files, run the Quantum Network Monitor service, and pay for inference from Novita and OpenAI—all out of my own pocket. All the code behind the model creation and the Quantum Network Monitor project is [open source](https://github.com/Mungert69). Feel free to use whatever you find helpful.
If you appreciate the work, please consider [buying me a coffee](https://www.buymeacoffee.com/mahadeva) ☕. Your support helps cover service costs and allows me to raise token limits for everyone.
I'm also open to job opportunities or sponsorship.
Thank you! 😊