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from transformers import AutoTokenizer, AutoModelForCausalLM
import torch
import os

device = "cuda"
device_map = {
    "lm_head": device,
    "model": device
}

model_name = "piotr-ai/polanka-qwen2-3b-v0.3-chat"

tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype=torch.bfloat16, device_map=device_map)

prompt = "Co to jest psychologia?"
messages = [
    {"role": "system", "content": "Jeste艣 przydatnym asystentem."},
    {"role": "assistant", "content": "Witam, jak mog臋 pom贸c?"},
    {"role": "user", "content": prompt}
]
text = tokenizer.apply_chat_template(messages, tokenize=False)
model_inputs = tokenizer([text], return_tensors="pt").to(device)

generated_ids = model.generate(
    model_inputs.input_ids,
    max_new_tokens=256,
    num_return_sequences=1,
    eos_token_id=tokenizer.convert_tokens_to_ids('<|im_end|>'),
    pad_token_id=tokenizer.eos_token_id
)

print(tokenizer.decode(generated_ids[0]))
<|im_start|>system
Jeste艣 przydatnym asystentem.<|im_end|>
<|im_start|>assistant
Witam, jak mog臋 pom贸c?<|im_end|>
<|im_start|>user
Co to jest psychologia?<|im_end|>
<|im_start|>assistant
Psychologia to nauka badaj膮ca zachowanie i procesy umys艂owe. Jest to ga艂膮藕 psychologii, kt贸ra koncentruje si臋 na zrozumieniu i wyja艣nianiu zachowa艅 i proces贸w umys艂owych.<|im_end|>
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