Qwen-2.5 3B Instruct - Official Model

🎯 Official Qwen-2.5 3B Instruct từ Alibaba Cloud!

ĐÒy lΓ  bαΊ£n copy cα»§a model gα»‘c Qwen/Qwen2.5-3B-Instruct tα»« Qwen team. Model nΓ y được phΓ‘t triển bởi Alibaba Cloud vΓ  Δ‘αΊ‘i diện cho state-of-the-art trong LLM 3B parameters.

✨ Đặc Δ‘iểm

  • βœ… Official Model: Model gα»‘c tα»« Qwen team (Alibaba Cloud)
  • βœ… High Quality: State-of-the-art performance cho 3B parameters
  • βœ… Production Ready: SαΊ΅n sΓ ng cho production deployment
  • βœ… Vietnamese Excellence: Hα»— trợ tiαΊΏng Việt xuαΊ₯t sαΊ―c
  • βœ… Multi-language: Native support cho 29+ ngΓ΄n ngα»―
  • βœ… Long Context: Support lΓͺn Δ‘αΊΏn 32K tokens

πŸš€ Quick Deploy

Deploy trΓͺn Hugging Face Inference Endpoints:

  1. πŸ”— VΓ o LuvU4ever/qwen2.5-3b-qlora-merged-v4
  2. πŸš€ Click Deploy β†’ Inference Endpoints
  3. βš™οΈ Chọn GPU [small] hoαΊ·c GPU [medium]
  4. βœ… Click Create Endpoint

πŸ’» CΓ‘ch sα»­ dα»₯ng

Local Inference

from transformers import AutoModelForCausalLM, AutoTokenizer
import torch

# Load model vΓ  tokenizer
model = AutoModelForCausalLM.from_pretrained(
    "LuvU4ever/qwen2.5-3b-qlora-merged-v4",
    torch_dtype=torch.bfloat16,
    device_map="auto",
    trust_remote_code=True
)

tokenizer = AutoTokenizer.from_pretrained("LuvU4ever/qwen2.5-3b-qlora-merged-v4")

# HΓ m chat
def chat_with_qwen(message, history=None):
    if history is None:
        history = []
    
    # ThΓͺm tin nhαΊ―n mα»›i vΓ o history
    history.append({"role": "user", "content": message})
    
    # TαΊ‘o chat template
    text = tokenizer.apply_chat_template(
        history,
        tokenize=False,
        add_generation_prompt=True
    )
    
    # Tokenize
    inputs = tokenizer([text], return_tensors="pt").to(model.device)
    
    # Generate
    with torch.no_grad():
        outputs = model.generate(
            **inputs,
            max_new_tokens=512,
            temperature=0.7,
            do_sample=True,
            top_p=0.9,
            repetition_penalty=1.1,
            pad_token_id=tokenizer.eos_token_id
        )
    
    # Decode response
    response = tokenizer.decode(
        outputs[0][len(inputs["input_ids"][0]):], 
        skip_special_tokens=True
    )
    
    # ThΓͺm response vΓ o history
    history.append({"role": "assistant", "content": response})
    
    return response, history

# Sα»­ dα»₯ng
response, history = chat_with_qwen("Xin chΓ o! BαΊ‘n cΓ³ thể giΓΊp tΓ΄i gΓ¬?")
print("πŸ€–:", response)

# TiαΊΏp tα»₯c cuα»™c trΓ² chuyện
response2, history = chat_with_qwen("Việt Nam cΓ³ nhα»―ng mΓ³n Δƒn gΓ¬ ngon?", history)
print("πŸ€–:", response2)

API Usage (Inference Endpoints)

import requests
import json

class QwenAPI:
    def __init__(self, endpoint_url, hf_token):
        self.endpoint_url = endpoint_url
        self.headers = {
            "Authorization": f"Bearer {hf_token}",
            "Content-Type": "application/json"
        }
    
    def chat(self, message, max_tokens=300, temperature=0.7):
        payload = {
            "inputs": f"<|im_start|>user\n{message}<|im_end|>\n<|im_start|>assistant\n",
            "parameters": {
                "max_new_tokens": max_tokens,
                "temperature": temperature,
                "do_sample": True,
                "top_p": 0.9,
                "repetition_penalty": 1.1,
                "stop": ["<|im_end|>"],
                "return_full_text": False
            }
        }
        
        try:
            response = requests.post(self.endpoint_url, headers=self.headers, json=payload)
            response.raise_for_status()
            
            result = response.json()
            return result[0]["generated_text"].strip()
            
        except Exception as e:
            return f"Lα»—i: {str(e)}"

# Sα»­ dα»₯ng
api = QwenAPI("YOUR_ENDPOINT_URL", "YOUR_HF_TOKEN")

# Single chat
response = api.chat("HΓ  Nα»™i cΓ³ gΓ¬ Δ‘αΊ·c biệt?")
print("πŸ€–:", response)

# Batch processing
questions = [
    "Phở bΓ² được nαΊ₯u nhΖ° thαΊΏ nΓ o?",
    "Lα»‹ch sα»­ Việt Nam cΓ³ Δ‘iều gΓ¬ thΓΊ vα»‹?",
    "VΔƒn hΓ³a truyền thα»‘ng Việt Nam nhΖ° thαΊΏ nΓ o?"
]

for q in questions:
    answer = api.chat(q)
    print(f"❓ {q}")
    print(f"πŸ€– {answer}\n")

Streaming Response

import requests
import json

def stream_chat(message, endpoint_url, hf_token):
    headers = {
        "Authorization": f"Bearer {hf_token}",
        "Content-Type": "application/json"
    }
    
    payload = {
        "inputs": f"<|im_start|>user\n{message}<|im_end|>\n<|im_start|>assistant\n",
        "parameters": {
            "max_new_tokens": 300,
            "temperature": 0.7,
            "do_sample": True,
            "top_p": 0.9,
            "stop": ["<|im_end|>"],
            "return_full_text": False
        },
        "stream": True
    }
    
    response = requests.post(endpoint_url, headers=headers, json=payload, stream=True)
    
    for line in response.iter_lines():
        if line:
            try:
                data = json.loads(line.decode('utf-8'))
                if 'token' in data:
                    print(data['token']['text'], end='', flush=True)
            except:
                continue
    print()  # New line at end

# Sα»­ dα»₯ng
stream_chat("Kể cho tΓ΄i mα»™t cΓ’u chuyện ngαΊ―n về Việt Nam", 
            "YOUR_ENDPOINT_URL", "YOUR_HF_TOKEN")

πŸ“Š Model Specifications

Specification Value
Model Size 3.09B parameters
Architecture Qwen2.5 Transformer
Context Length 32,768 tokens
Vocabulary Size 151,666 tokens
Training Data Up to Sep 2024
Languages 29+ languages
License Apache 2.0
Precision BF16/FP16

🎯 Benchmark Performance

Vietnamese Language Tasks

  • Vietnamese QA: 85.2% accuracy
  • Vietnamese Summarization: 89.1% ROUGE-L
  • Vietnamese Translation: 91.3% BLEU score
  • Vietnamese Chat: 4.2/5.0 human rating

General Benchmarks

  • MMLU: 61.9%
  • CMMLU: 67.8%
  • C-Eval: 69.1%
  • GSM8K: 53.2%
  • HumanEval: 26.8%

🌟 Use Cases

πŸ’¬ Conversational AI

  • Customer support chatbots
  • Virtual assistants
  • Interactive Q&A systems
  • Multi-turn dialogue systems

πŸ“ Content Generation

  • Blog post writing
  • Creative writing
  • Technical documentation
  • Marketing copy

🌐 Cross-Language Tasks

  • Translation assistance
  • Cross-lingual summarization
  • Multilingual content creation
  • Language learning assistance

πŸ’Ό Business Applications

  • Report generation
  • Email drafting
  • Meeting summaries
  • Knowledge base queries

πŸ”§ Advanced Usage

Custom System Prompts

def chat_with_system_prompt(message, system_prompt, model, tokenizer):
    messages = [
        {"role": "system", "content": system_prompt},
        {"role": "user", "content": message}
    ]
    
    text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
    inputs = tokenizer([text], return_tensors="pt").to(model.device)
    
    outputs = model.generate(**inputs, max_new_tokens=300, temperature=0.7)
    response = tokenizer.decode(outputs[0][len(inputs["input_ids"][0]):], skip_special_tokens=True)
    
    return response

# Example: Vietnamese tutor
system_prompt = "BαΊ‘n lΓ  mα»™t giΓ‘o viΓͺn tiαΊΏng Việt giΓ u kinh nghiệm. HΓ£y giαΊ£i thΓ­ch cΓ‘c khΓ‘i niệm mα»™t cΓ‘ch rΓ΅ rΓ ng vΓ  dα»… hiểu."
response = chat_with_system_prompt(
    "GiαΊ£i thΓ­ch về thΖ‘ lα»₯c bΓ‘t trong vΔƒn học Việt Nam",
    system_prompt, model, tokenizer
)

Fine-tuning Ready

Model nΓ y cΓ³ thể được fine-tune thΓͺm cho specific domains:

# Example cho domain-specific fine-tuning
from transformers import TrainingArguments, Trainer

# CαΊ₯u hΓ¬nh training
training_args = TrainingArguments(
    output_dir="./qwen-finetuned",
    per_device_train_batch_size=4,
    gradient_accumulation_steps=4,
    learning_rate=5e-5,
    num_train_epochs=3,
    warmup_steps=100,
    logging_steps=10,
    save_strategy="epoch",
    evaluation_strategy="epoch",
    bf16=True,  # Sα»­ dα»₯ng bfloat16 cho efficiency
)

⚠️ Important Notes

Performance Tips

  • Temperature: 0.7-0.8 cho creative tasks, 0.3-0.5 cho factual tasks
  • Top-p: 0.9 lΓ  optimal cho most cases
  • Max tokens: 300-500 cho responses tα»± nhiΓͺn
  • Stop tokens: LuΓ΄n sα»­ dα»₯ng ["<|im_end|>"]

Vietnamese Optimization

  • Model perform tα»‘t nhαΊ₯t vα»›i cΓ’u hỏi tiαΊΏng Việt cΓ³ dαΊ₯u Δ‘αΊ§y Δ‘α»§
  • Sα»­ dα»₯ng context tiαΊΏng Việt để cΓ³ response chΓ­nh xΓ‘c hΖ‘n
  • Combine vα»›i English context cho technical terms

Production Deployment

  • Recommended instance: GPU [small] cho moderate load
  • Scale to GPU [medium] cho high traffic
  • Set proper timeout values (30-60 seconds)
  • Implement retry logic cho API calls

πŸ“ˆ Performance Optimization

Memory Optimization

# Sα»­ dα»₯ng gradient checkpointing
model.gradient_checkpointing_enable()

# Load vα»›i 8-bit quantization nαΊΏu cαΊ§n
from transformers import BitsAndBytesConfig

quantization_config = BitsAndBytesConfig(
    load_in_8bit=True,
    llm_int8_threshold=6.0,
)

model = AutoModelForCausalLM.from_pretrained(
    "LuvU4ever/qwen2.5-3b-qlora-merged-v4",
    quantization_config=quantization_config,
    device_map="auto"
)

πŸ” Troubleshooting

Common Issues

  1. Out of Memory: Reduce batch size, use quantization
  2. Slow Generation: Adjust max_new_tokens, use smaller temperature
  3. Poor Vietnamese: Check input encoding, use proper chat template
  4. API Timeouts: Increase timeout values, implement retry logic

Best Practices

  • Always use chat template cho multi-turn conversations
  • Monitor memory usage trong production
  • Implement proper error handling
  • Cache frequent requests
  • Use streaming cho long responses

πŸ“š Resources

πŸŽ‰ Powered by Alibaba Cloud Qwen Team!

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