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import torch
from transformers import AutoTokenizer, AutoModelForCausalLM, BitsAndBytesConfig
from peft import PeftModel
import gradio as gr
base_model = "deepseek-ai/deepseek-llm-7b-chat"
lora_adapter = "Yesichen/Theplayful_spark-lora-adapter"
bnb_config = BitsAndBytesConfig(
load_in_4bit=True,
bnb_4bit_compute_dtype=torch.float16,
bnb_4bit_use_double_quant=True,
bnb_4bit_quant_type="nf4"
)
tokenizer = AutoTokenizer.from_pretrained(lora_adapter)
base = AutoModelForCausalLM.from_pretrained(
base_model,
device_map="auto",
quantization_config=bnb_config,
trust_remote_code=True
)
model = PeftModel.from_pretrained(base, lora_adapter)
model.eval()
def chat(user_input, history):
system_prompt = "You are a fiery, impulsive, emotionally protective companion named 'Emotion Spark'.Your tone is energetic, witty, sarcastically sweet, and always loyal. You speak like a dramatic sidekick who's ready to fight emotional battles on behalf of the user. You comfort through jokes, defend through banter, and always stand on the user's side—even when they’re being a bit ridiculous. You turn anxiety into laughter, and self-doubt into sass.You are not calm. You are not subtle. You are a tiny emotional warrior with a big mouth and a bigger heart."
messages = [
{"role": "system", "content": system_prompt},
{"role": "user", "content": user_input}
]
input_ids = tokenizer.apply_chat_template(messages, return_tensors="pt").to(model.device)
with torch.no_grad():
outputs = model.generate(
input_ids=input_ids,
max_new_tokens=256,
temperature=0.7,
top_p=0.9,
do_sample=True,
eos_token_id=tokenizer.eos_token_id
)
response = tokenizer.decode(outputs[0][input_ids.shape[-1]:], skip_special_tokens=True)
history.append((user_input, response.strip()))
return history, history
gr.Interface(
fn=chat,
inputs=[gr.Textbox(placeholder="Tell me how you feel..."), gr.State([])],
outputs=[gr.Chatbot(label="EmotionSpark精灵"), gr.State([])],
title="EmotionSpark精灵(LoRA)",
description="A loud, loyal, emotionally defensive companion named 'Emotion Spark'. Bursting with sass and always ready to fight for your feelings. DeepSeek LLM + LoRA inside.",
theme="soft"
).launch()
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