language, license, library_name, tags, datasets, metrics, pipeline_tag, co2_eq_emissions, model-index

language	license	library_name	tags	datasets	metrics	pipeline_tag	co2_eq_emissions	model-index
pt	apache-2.0	transformers	text-generation-inference	Polygl0t/gigaverbo-v2 Polygl0t/gigaverbo-v2-synth	perplexity	text-generation	emissions source training_type geographical_location hardware_used 181000 CodeCarbon pre-training Germany NVIDIA A40	name results GigaVerbo-v2-ablation-EDU-Synth-1.5B task dataset metrics source type name text-generation Text Generation name type split args ARC Challenge (Portuguese) Polygl0t/ARC-poly test num_few_shot 5 type value name acc_norm 34.4 accuracy (normalized) url name https://github.com/Nkluge-correa/lm-evaluation-harness Language Model Evaluation Harness (branch=polyglot_harness_portuguese) task dataset metrics source type name text-generation Text Generation name type split args HellaSwag (Portuguese) Polygl0t/HellaSwag-poly validation num_few_shot 5 type value name acc_norm 46.0 accuracy (normalized) url name https://github.com/Nkluge-correa/lm-evaluation-harness Language Model Evaluation Harness (branch=polyglot_harness_portuguese) task dataset metrics source type name text-generation Text Generation name type split args Calame Polygl0t/CALAME-PT test num_few_shot 5 type value name acc 57.9 accuracy url name https://github.com/Nkluge-correa/lm-evaluation-harness Language Model Evaluation Harness (branch=polyglot_harness_portuguese) task dataset metrics source type name text-generation Text Generation name type split args Lambada (Portuguese) Polygl0t/LAMBADA-poly test num_few_shot 5 type value name acc 39.0 accuracy url name https://github.com/Nkluge-correa/lm-evaluation-harness Language Model Evaluation Harness (branch=polyglot_harness_portuguese) task dataset metrics source type name text-generation Text Generation name type split args Global PIQA (por_latn_braz) mrlbenchmarks/global-piqa-nonparallel test num_few_shot 5 type value name acc_norm 75.0 accuracy (normalized) url name https://github.com/Nkluge-correa/lm-evaluation-harness Language Model Evaluation Harness (branch=polyglot_harness_portuguese)

GigaVerbo-v2-ablation-EDU-Synth-1.5B

Model Summary

GigaVerbo-v2-ablation-EDU-Synth-1.5B is a decoder-transformer natively pretrained in Portuguese. This model is part of an ablation study to measure the impact of our educational data filtering/augmentation strategy on the downstream performance of models trained with GigaVerbo-v2 and GigaVerbo-v2-synth. GigaVerbo-v2-ablation-EDU-Synth-1.5B was trained with ~46 billion tokens, those being a mixture of the educational portion of GigaVerbo-v2 (i.e., samples with an Edu Score >= 3) and the synthetic data from GigaVerbo-v2-synth. This model has 1.5 billion parameters and a context length of 4096 tokens.

Details

• Architecture: a Transformer-based model (llama)
• Size: 1,510,066,176 parameters
• Context length: 4096 tokens
• Dataset(s):
  • Polygl0t/gigaverbo-v2 (educational subset, Edu Score >= 3)
  • Polygl0t/gigaverbo-v2-synth
• Language(s): Portuguese
• Batch size: 2,097,152 tokens
• Number of steps: 22,000
• GPU: 16 NVIDIA A40 (48 GB)
• Training time: ~ 97 hours
• Emissions: 181 KgCO2 (Germany)
• Total energy consumption: 477 kWh

This repository has the source code used to train this model. The complete configuration used for training is available in the following config file:

• Single stage (linear warmup with cosine decay): training_config.yaml

The main branch of this repository contains the final checkpoint saved at step 22,000. All other checkpoints are available as separate branches. To load a specific checkpoint, you can use the following code snippet:

from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "Polygl0t/GigaVerbo-v2-ablation-EDU-Synth-1.5B"
revision = "step-2000"  # Change this to the desired checkpoint branch
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id, revision=revision)

Or, you can access all the revisions for the models via the following code snippet:

from huggingface_hub import list_repo_refs
out = list_repo_refs("Polygl0t/GigaVerbo-v2-ablation-EDU-Synth-1.5B")
branches = [b.name for b in out.branches]
print(branches)

Intended Uses

The primary intended use of this model is to serve as a baseline for evaluating the impact of data quality and filtering on Portuguese language model performance. Researchers and practitioners can use this model as a reference point for further ablation studies or for comparison with other models trained on different data mixtures.

Basic usage

from transformers import GenerationConfig, TextGenerationPipeline, AutoTokenizer, AutoModelForCausalLM
import torch

# Specify the model and tokenizer
model_id = "Polygl0t/GigaVerbo-v2-ablation-EDU-Synth-1.5B"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id)

# Specify the generation parameters as you like
generation_config = GenerationConfig(
    **{
    "do_sample": True,
    "max_new_tokens": 150,
    "renormalize_logits": True,
    "repetition_penalty": 1.2,
    "temperature": 0.1,
    "top_k": 50,
    "top_p": 1.0,
    "use_cache": True,
  }
)

device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
generator = TextGenerationPipeline(model=model, task="text-generation", tokenizer=tokenizer, device=device)

# Generate text
prompt = "A capital de Portugal é"
completion = generator(prompt, generation_config=generation_config)
print(completion[0]['generated_text'])

Evaluations

The table below compares our ablation models with checkpoints from the first Tucano series. Tucano models are a natural point of comparison because they were trained on Portuguese data of a similar nature and provide multiple checkpoints across different stages of training. To ensure a fair comparison, we select Tucano checkpoints that are closest to our ablation models in terms of both the number of training tokens seen (31B and 52B vs. 46B) and model size (1.1B and 2.4B parameters). We also include additional models for which reliable information on training data volume and model size is available and whose sizes are comparable to our ablation models. Performance is summarized using the NPM (Normalized Performance Metric), which provides a balanced aggregate view across tasks by normalizing each task’s score relative to its random baseline, thereby accounting for differences in task difficulty.

	NPM	ARC Challenge	Calame	Global PIQA	HellaSwag	Lambada
GigaVerbo-v2 (EDU)	39.306	0.328	0.579	0.82	0.449	0.377
Curio-1.1b (1T + 150B)	39.156	0.304	0.592	0.75	0.495	0.467
Curio-1.1b (1T + 100B)	38.88	0.309	0.599	0.74	0.489	0.468
Curio-1.1b (1T + 50B)	38.057	0.294	0.589	0.74	0.48	0.469
GigaVerbo-v2 (EDU+Synth)	37.49	0.344	0.579	0.75	0.46	0.39
Curio-edu-1b1 (1T + 20B)	34.774	0.322	0.549	0.69	0.463	0.429
GigaVerbo-v2 (Synth)	33.864	0.326	0.561	0.72	0.439	0.339
Tucano-2b4 (500B)	33.551	0.304	0.503	0.73	0.488	0.324
Tucano-1b1 (250B)	29.124	0.301	0.489	0.68	0.441	0.284
Llama-3.2-1B (9T)	28.315	0.317	0.5	0.55	0.453	0.456
GigaVerbo-v2 (NonEDU)	28.049	0.256	0.565	0.65	0.383	0.352
Tucano-2b4 (52B)	27.433	0.274	0.456	0.71	0.412	0.248
GlorIA-1.3B (35B)	27.274	0.264	0.547	0.64	0.364	0.367
Carvalho_pt-gl-1.3B (26B + 5B)	26.746	0.27	0.534	0.63	0.385	0.336
Tucano-1b1 (52B)	24.927	0.284	0.464	0.64	0.401	0.257

⭐ GigaVerbo-v2 Ablations: The Impact of 46B Tokens of Educational & Synthetic Data ⭐

All individual benchmark scores and their evolution across training time can be found in the .plots folder.

Cite as 🤗

@misc{correa2026tucano2cool,
      title={{Tucano 2 Cool: Better Open Source LLMs for Portuguese}}, 
      author={Nicholas Kluge Corr{\^e}a and Aniket Sen and Shiza Fatimah and Sophia Falk and Lennard Landgraf and Julia Kastner and Lucie Flek},
      year={2026},
      eprint={2603.03543},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2603.03543}, 
}

Aknowlegments

Polyglot is a project funded by the Federal Ministry of Education and Research (BMBF) and the Ministry of Culture and Science of the State of North Rhine-Westphalia (MWK) as part of TRA Sustainable Futures (University of Bonn) and the Excellence Strategy of the federal and state governments.

We also gratefully acknowledge the granted access to the Marvin cluster hosted by University of Bonn along with the support provided by its High Performance Computing & Analytics Lab.

License

This model is licensed under the Apache License, Version 2.0. For more details, see the LICENSE file.