Update app.py
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app.py
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from peft import PeftModel
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from transformers import AutoModelForCausalLM, AutoTokenizer, GenerationConfig
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import gradio as gr
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# Загрузка модели и токенизатора
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base_model = AutoModelForCausalLM.from_pretrained(
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"Qwen/Qwen2.5-0.5B-Instruct",
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device_map="auto"
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)
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model = PeftModel.from_pretrained(base_model, "Locon213/ThinkLite")
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tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen2.5-0.5B-Instruct")
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# Конфигурация генерации
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generation_config = GenerationConfig(
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temperature=0.7,
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top_p=0.9,
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top_k=50,
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max_new_tokens=512,
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repetition_penalty=1.1,
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do_sample=True
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)
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def format_prompt(message, history):
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prompt = ""
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for user_msg, bot_msg in history:
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prompt += f"<<<USER>>> {user_msg}\n<<<ASSISTANT>>> {bot_msg}\n"
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prompt += f"<<<USER>>> {message}\n<<<ASSISTANT>>>"
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return prompt
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def generate_response(message, history):
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# Форматируем промпт с историей чата
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formatted_prompt = format_prompt(message, history)
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# Токенизация и генерация
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inputs = tokenizer(formatted_prompt, return_tensors="pt").to(model.device)
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outputs = model.generate(
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**inputs,
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generation_config=generation_config,
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pad_token_id=tokenizer.eos_token_id
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)
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# Декодирование и извлечение ответа
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response = tokenizer.decode(outputs[0][len(inputs.input_ids[0]):], skip_special_tokens=True)
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return response.strip()
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# Создание чат-интерфейса
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chat_interface = gr.ChatInterface(
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fn=generate_response,
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examples=[
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"Объясни квантовую запутанность простыми словами",
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"Как научиться программировать?",
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"Напиши стихотворение про ИИ"
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],
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title="ThinkLite Chat",
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description="Общайтесь с ThinkLite - адаптированной версией Qwen2.5-0.5B-Instruct",
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theme="soft"
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)
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if __name__ == "__main__":
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chat_interface.launch()
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