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Create app.py
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app.py
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import gradio as gr
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from huggingface_hub import InferenceClient
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import os
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# Obt茅n el token de manera segura desde el entorno
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hf_token = os.getenv("HF_API_TOKEN")
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# Clase para manejar m煤ltiples modelos
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class ModelHandler:
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def __init__(self, model_names, token):
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"""
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Inicializa el manejador de modelos con los nombres de los modelos y el token de API.
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"""
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self.clients = {
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model_name: InferenceClient(model_name, token=token)
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for model_name in model_names
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}
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self.current_model = model_names[0]
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def switch_model(self, model_name):
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"""
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Cambia el modelo actual.
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"""
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if model_name in self.clients:
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self.current_model = model_name
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else:
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raise ValueError(f"Modelo {model_name} no est谩 disponible.")
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def generate_response(self, input_text):
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"""
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Genera una respuesta utilizando el modelo actual.
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"""
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prompt = f"Debes de responder a cualquier pregunta:\nPregunta: {input_text}"
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try:
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messages = [{"role": "user", "content": prompt}]
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client = self.clients[self.current_model]
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response = client.chat_completion(messages=messages, max_tokens=500)
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if hasattr(response, 'choices') and response.choices:
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return response.choices[0].message.content
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else:
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return str(response)
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except Exception as e:
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return f"Error al realizar la inferencia: {e}"
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# Lista de modelos disponibles
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model_names = [
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"microsoft/Phi-3-mini-4k-instruct",
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"bigscience/bloomz-560m",
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"tiiuae/falcon-7b-instruct"
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]
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# Inicializa el manejador de modelos
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model_handler = ModelHandler(model_names, hf_token)
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# Configura la interfaz en Gradio con selecci贸n de modelos
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with gr.Blocks(title="Multi-Model LLM Chatbot") as demo:
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gr.Markdown(
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"""
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## Chatbot Multi-Modelo LLM
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Este chatbot permite elegir entre m煤ltiples modelos de lenguaje para responder preguntas.
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Selecciona un modelo, escribe tu consulta, y presiona el bot贸n de enviar para obtener una respuesta.
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"""
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)
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with gr.Row():
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model_dropdown = gr.Dropdown(
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choices=model_names,
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value=model_names[0],
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label="Seleccionar Modelo",
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interactive=True
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)
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with gr.Row():
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with gr.Column():
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input_text = gr.Textbox(
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lines=5,
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placeholder="Escribe tu pregunta aqu铆...",
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label="Pregunta"
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)
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with gr.Column():
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output_text = gr.Textbox(
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lines=5,
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label="Respuesta",
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interactive=False
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)
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submit_button = gr.Button("Enviar")
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# Define la funci贸n de actualizaci贸n
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def process_input(selected_model, user_input):
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model_handler.switch_model(selected_model)
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return model_handler.generate_response(user_input)
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# Conecta la funci贸n a los componentes
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submit_button.click(
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fn=process_input,
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inputs=[model_dropdown, input_text],
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outputs=output_text
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)
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# Lanza la interfaz
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demo.launch()
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