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!pip -q install git+https://github.com/huggingface/transformers # need to install from github
!pip -q install bitsandbytes accelerate xformers einops
import os
import torch
import transformers
from transformers import AutoTokenizer, AutoModelForCausalLM, BitsAndBytesConfig, pipeline
model_name = "herisan/llama-3-8b_mental_health_counseling_conversations"
# use the commented out parts for running in 4bit
bnb_config = BitsAndBytesConfig(
load_in_4bit=True,
bnb_4bit_use_double_quant=True,
bnb_4bit_quant_type="nf4",
bnb_4bit_compute_dtype=torch.bfloat16
)
model = AutoModelForCausalLM.from_pretrained(
model_name,
torch_dtype=torch.bfloat16,
quantization_config=bnb_config,
# low_cpu_mem_usage=True
)
tokenizer = AutoTokenizer.from_pretrained(model_name)
tokenizer.bos_token_id = 1
stop_token_ids = [0]
pipe = pipeline(
"text-generation",
model=model,
tokenizer=tokenizer,
use_cache=True,
device_map="auto",
max_length=2046,
do_sample=True,
top_k=5,
num_return_sequences=1,
eos_token_id=tokenizer.eos_token_id,
pad_token_id=tokenizer.eos_token_id,
)
messages = [
{
"role": "system",
"content": "Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.",
},
{"role": "user", "content": "I'm going through some things with my feelings and myself. I barely sleep and I do nothing but think about how I'm worthless and how I shouldn't be here. I've never tried or contemplated suicide. I've always wanted to fix my issues, but I never get around to it. How can I change my feeling of being worthless to everyone?"},
]
prompt = pipe.tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
outputs = pipe(prompt, max_new_tokens=2046, do_sample=True, temperature=0.7, top_k=50, top_p=0.95, truncation=True)
print(outputs[0]["generated_text"])
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