docs/source/en/model_doc/helium.md
This model was released on 2025-01-13 and added to Hugging Face Transformers on 2025-01-13.
Helium was proposed in Announcing Helium-1 Preview by the Kyutai Team.
Helium-1 preview is a lightweight language model with 2B parameters, targeting edge and mobile devices. It supports the following languages: English, French, German, Italian, Portuguese, Spanish.
The model was evaluated on MMLU, TriviaQA, NaturalQuestions, ARC Easy & Challenge, Open Book QA, Common Sense QA, Physical Interaction QA, Social Interaction QA, HellaSwag, WinoGrande, Multilingual Knowledge QA, FLORES 200.
We report accuracy on MMLU, ARC, OBQA, CSQA, PIQA, SIQA, HellaSwag, WinoGrande. We report exact match on TriviaQA, NQ and MKQA. We report BLEU on FLORES.
| Benchmark | Helium-1 Preview | HF SmolLM2 (1.7B) | Gemma-2 (2.6B) | Llama-3.2 (3B) | Qwen2.5 (1.5B) |
|---|---|---|---|---|---|
| MMLU | 51.2 | 50.4 | 53.1 | 56.6 | 61.0 |
| NQ | 17.3 | 15.1 | 17.7 | 22.0 | 13.1 |
| TQA | 47.9 | 45.4 | 49.9 | 53.6 | 35.9 |
| ARC E | 80.9 | 81.8 | 81.1 | 84.6 | 89.7 |
| ARC C | 62.7 | 64.7 | 66.0 | 69.0 | 77.2 |
| OBQA | 63.8 | 61.4 | 64.6 | 68.4 | 73.8 |
| CSQA | 65.6 | 59.0 | 64.4 | 65.4 | 72.4 |
| PIQA | 77.4 | 77.7 | 79.8 | 78.9 | 76.0 |
| SIQA | 64.4 | 57.5 | 61.9 | 63.8 | 68.7 |
| HS | 69.7 | 73.2 | 74.7 | 76.9 | 67.5 |
| WG | 66.5 | 65.6 | 71.2 | 72.0 | 64.8 |
| Average | 60.7 | 59.3 | 62.2 | 64.7 | 63.6 |
| Language | Benchmark | Helium-1 Preview | HF SmolLM2 (1.7B) | Gemma-2 (2.6B) | Llama-3.2 (3B) | Qwen2.5 (1.5B) |
|---|---|---|---|---|---|---|
| German | MMLU | 45.6 | 35.3 | 45.0 | 47.5 | 49.5 |
| ARC C | 56.7 | 38.4 | 54.7 | 58.3 | 60.2 | |
| HS | 53.5 | 33.9 | 53.4 | 53.7 | 42.8 | |
| MKQA | 16.1 | 7.1 | 18.9 | 20.2 | 10.4 | |
| Spanish | MMLU | 46.5 | 38.9 | 46.2 | 49.6 | 52.8 |
| ARC C | 58.3 | 43.2 | 58.8 | 60.0 | 68.1 | |
| HS | 58.6 | 40.8 | 60.5 | 61.1 | 51.4 | |
| MKQA | 16.0 | 7.9 | 18.5 | 20.6 | 10.6 |
| Hyperparameter | Value |
|---|---|
| Layers | 24 |
| Heads | 20 |
| Model dimension | 2560 |
| MLP dimension | 7040 |
| Context size | 4096 |
| Theta RoPE | 100,000 |
Tips:
Helium can be found on the Huggingface Hub
In the following, we demonstrate how to use helium-1-preview for the inference.
from transformers import AutoModelForCausalLM, AutoTokenizer
model = AutoModelForCausalLM.from_pretrained("kyutai/helium-1-preview-2b", device_map="auto")
tokenizer = AutoTokenizer.from_pretrained("kyutai/helium-1-preview-2b")
prompt = "Give me a short introduction to large language model."
model_inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
generated_ids = model.generate(model_inputs.input_ids, max_new_tokens=512, do_sample=True)
generated_ids = [output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ids, generated_ids)]
response = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0]
[[autodoc]] HeliumConfig
[[autodoc]] HeliumModel - forward
[[autodoc]] HeliumForCausalLM - forward
[[autodoc]] HeliumForSequenceClassification - forward
[[autodoc]] HeliumForTokenClassification - forward