README.md

---
library_name: peft
base_model: LSX-UniWue/LLaMmlein_1B
tags:
- trl
- sft
- generated_from_trainer
model-index:
- name: LLaMmlein_1b_chat_alpaca
  results: []
datasets:
- FreedomIntelligence/alpaca-gpt4-deutsch
language:
- de
license: other
---

# LLäMmlein 1B Chat

This is a chat adapter for the German Tinyllama 1B language model.
Find more details on our [page](https://www.informatik.uni-wuerzburg.de/datascience/projects/nlp/llammlein/) and our [preprint](arxiv.org/abs/2411.11171)!
We also merged the adapter and converted it to GGUF [here](LSX-UniWue/LLaMmlein_1B_alternative_formats).

## Run it
```py
import torch
from peft import PeftConfig, PeftModel
from transformers import AutoModelForCausalLM, AutoTokenizer

torch.manual_seed(42)

# script config
base_model_name = "LSX-UniWue/LLaMmlein_1B"
chat_adapter_name = "LSX-UniWue/LLaMmlein_1B_chat_alpaca"
device = "cuda"  # or mps

# chat history
messages = [
    {
        "role": "user",
        "content": """Na wie geht's?""",
    },
]

# load model
config = PeftConfig.from_pretrained(chat_adapter_name)
base_model = model = AutoModelForCausalLM.from_pretrained(
    base_model_name,
    torch_dtype=torch.bfloat16,
    device_map=device,
)
base_model.resize_token_embeddings(32064)
model = PeftModel.from_pretrained(base_model, chat_adapter_name)
tokenizer = AutoTokenizer.from_pretrained(chat_adapter_name)

# encode message in "ChatML" format
chat = tokenizer.apply_chat_template(
    messages,
    return_tensors="pt",
    add_generation_prompt=True,
).to(device)

# generate response
print(
    tokenizer.decode(
        model.generate(
            chat,
            max_new_tokens=300,
            pad_token_id=tokenizer.pad_token_id,
            eos_token_id=tokenizer.eos_token_id,
        )[0],
        skip_special_tokens=False,
    )
)

```