Update README.md
Browse files# TinyLlama MentalChat LoRA
This repository contains a **LoRA adapter** fine-tuned on the
[ShenLab/MentalChat16K](https://huggingface.co/datasets/ShenLab/MentalChat16K)
dataset for **mental health–related supportive dialogue**.
⚠️ This is **not a full model**. It is a lightweight LoRA adapter that must be
used together with the base model.
---
## 🔍 Model Overview
- **Base Model**: TinyLlama/TinyLlama-1.1B-Chat-v1.0
- **Fine-tuning Method**: LoRA (PEFT)
- **Domain**: Mental health supportive conversations
- **Language**: English
- **Parameter Size (Adapter)**: ~50MB
---
## 📚 Training Data
The model was fine-tuned using the **MentalChat16K** dataset, which consists of
mental health–related conversations between users and assistants.
- Dataset: `ShenLab/MentalChat16K`
- Language: English
- Task: Supportive, empathetic responses in mental health contexts
---
## 🚀 Usage
### Load Base Model + LoRA Adapter
from unsloth import FastLanguageModel
from peft import PeftModel
import torch
# Base model
base_model, tokenizer = FastLanguageModel.from_pretrained(
"TinyLlama/TinyLlama-1.1B-Chat-v1.0",
max_seq_length=2048,
load_in_4bit=True,
)
# LoRA model
lora_model = PeftModel.from_pretrained(
base_model,
"BEncoderRT/tinyllama-mentalchat-lora",
)
FastLanguageModel.for_inference(lora_model)
FastLanguageModel.for_inference(base_model)
def generate(model, prompt, max_new_tokens=200):
inputs = tokenizer(prompt, return_tensors="pt").to("cuda")
with torch.no_grad():
outputs = model.generate(
**inputs,
max_new_tokens=max_new_tokens,
do_sample=True,
temperature=0.7,
top_p=0.9,
)
return tokenizer.decode(outputs[0], skip_special_tokens=True)
prompt = """### Instruction:
I feel empty and hopeless lately. Nothing seems meaningful.
### Response:
"""
print("=== Base Model ===")
print(generate(base_model, prompt))
print("\n=== LoRA Model ===")
print(generate(lora_model, prompt))