---
license: apache-2.0
library_name: transformers
pipeline_tag: text-generation
tags:
  - grt
  - chat
  - conversational
  - rotational-transformer
  - givens-rotations
  - clifford-algebra
  - matterwave
base_model: MatterWaveAI/grt-30m
---

# GRT-30M-Chat (`MatterWaveAI/grt-30m-chat`)

**GRT-30M-Chat** is the instruction and multi-turn conversational fine-tune of [`MatterWaveAI/grt-30m`](https://huggingface.co/MatterWaveAI/grt-30m) (`29,305,498` parameters, **zero `nn.Linear` layers**), formatted with the standard **ChatML** (`<|im_start|>` / `<|im_end|>`) template.

## SFT Alignment Metrics

- **Held-out Conversational Perplexity**: `182.79` (base) → **`1.37`** (Chat SFT)
- **Held-out Assistant Loss**: `5.2083` → **`0.3129`**

## Quickstart (`transformers`)

```python
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "MatterWaveAI/grt-30m-chat"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id, dtype=torch.float32)

messages = [
    {"role": "user", "content": "What is GRT-30M?"}
]
prompt = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(prompt, return_tensors="pt", add_special_tokens=False)

out_ids = model.generate(**inputs, max_new_tokens=64, do_sample=False)
print(tokenizer.decode(out_ids[0, inputs["input_ids"].shape[1]:], skip_special_tokens=True))
```

---

## Complete `MatterWaveAI/grt-30m*` Research Suite on Hugging Face

1. **Base Causal LM**: [`MatterWaveAI/grt-30m`](https://huggingface.co/MatterWaveAI/grt-30m)
2. **Chat Fine-Tune**: [`MatterWaveAI/grt-30m-chat`](https://huggingface.co/MatterWaveAI/grt-30m-chat)
3. **4-Expert Mixture-of-Rotations (`MoR`)**: [`MatterWaveAI/grt-30m-mor`](https://huggingface.co/MatterWaveAI/grt-30m-mor)
4. **Circular-Pooled Sentence Embedding**: [`MatterWaveAI/grt-30m-embedding`](https://huggingface.co/MatterWaveAI/grt-30m-embedding)
5. **Cross-Encoder Reranker**: [`MatterWaveAI/grt-30m-reranker`](https://huggingface.co/MatterWaveAI/grt-30m-reranker)
6. **Vision-Language (`GRTVL`)**: [`MatterWaveAI/grt-30m-vl`](https://huggingface.co/MatterWaveAI/grt-30m-vl)
7. **Canonical Tokenizer & Polar Embedding Bank**: [`MatterWaveAI/grt-30m-tokenizer`](https://huggingface.co/MatterWaveAI/grt-30m-tokenizer)

- **Whitepaper**: [**The Geometric Rotation Transformer (GRT): A Purely Rotational Foundation Architecture (`GRT_Whitepaper.pdf`)**](https://huggingface.co/MatterWaveAI/grt-30m/resolve/main/GRT_Whitepaper.pdf)

---

## License

Apache 2.0

---

## Citation

```bibtex
@techreport{householter2026grt,
  title       = {The Geometric Rotation Transformer: A Purely Rotational Foundation Architecture},
  author      = {Householter, David},
  institution = {MatterWave AI},
  year        = {2026},
  url         = {https://matterwave.ai}
}
```