---
license: apache-2.0
library_name: vla-foundry
tags:
  - foundry
  - vla_foundry
  - llm
  - text-generation
---

# Foundry-LLM-1.2B-800B

A 1.2B parameter language model pretrained on 800B tokens, part of the [VLA Foundry](https://github.com/TRI-ML/vla_foundry) model collection.

## Model Description

- **Architecture:** Transformer (24 layers, 2048 hidden dim, 16 heads, SwiGLU FFN, RoPE, QK-norm)
- **Parameters:** 1.2B (non-embedding)
- **Tokenizer:** SmolVLM2 (vocab size 49,280)
- **Training data:** 800B tokens from DCLM-Baseline-1.0
- **LR schedule:** Warmup + constant (no decay)
- **Sequence length:** 2048

Earlier checkpoint of the Foundry LLM, used as the language backbone for the downstream VLM and VLA models.

## Evaluation Results

Multiple-choice reasoning benchmarks:

| HellaSwag | MMLU | ARC-e | ARC-c | PIQA | WinoGrande | OpenBookQA | BoolQ |
|---|---|---|---|---|---|---|---|
| 64.3 | 26.0 | 70.3 | 37.0 | 75.8 | 60.9 | 40.0 | 63.2 |

## Usage

```bash
git clone https://github.com/TRI-ML/vla_foundry.git
cd vla_foundry
pip install -e .
```

```python
from vla_foundry.models.base_model import BaseModel
model = BaseModel.from_pretrained("TRI-ML/Foundry-LLM-1.2B-800B")
```

## Links

- **Project page:** [tri-ml.github.io/vla_foundry](https://tri-ml.github.io/vla_foundry/)
- **Paper:** [VLA Foundry (arXiv 2604.19728)](https://arxiv.org/abs/2604.19728)
- **Code:** [github.com/TRI-ML/vla_foundry](https://github.com/TRI-ML/vla_foundry)
- **Collection:** [VLA Foundry collection](https://huggingface.co/collections/TRI-ML/vla-foundry)