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import gradio as gr
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline

model = AutoModelForCausalLM.from_pretrained("checkpoint_500",trust_remote_code=True)
tokenizer = AutoTokenizer.from_pretrained("checkpoint_500", trust_remote_code=True)
tokenizer.pad_token = tokenizer.eos_token

def inference(prompt, count):
    pipe = pipeline(task="text-generation", model=model, tokenizer=tokenizer, max_length=200) 
    result = pipe(f"### Human: {prompt}",max_new_tokens=count)
    out_text = result[0]['generated_text']
    return out_text

title = "TSAI S21 Assignment: Adaptive QLoRA training on open assist oasst1 dataset, using microsoft/phi2 model"
description = "A simple Gradio interface that accepts a context and generates GPT like text "
examples = [["What is a large language model?","200"],
            ["Explain about monopsony","200"]
           ]
 

demo = gr.Interface(
    inference, 
    inputs = [gr.Textbox(placeholder="Enter a prompt"), gr.Textbox(placeholder="Enter number of characters you want to generate")], 
    outputs = [gr.Textbox(label="Chat GPT like text")],
    title = title,
    description = description,
    examples = examples
)
demo.launch()