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from huggingface_hub import InferenceClient
import gradio as gr
client = InferenceClient(
"google/gemma-7b-it"
)
def format_prompt(message, history):
prompt = ""
if history:
#<start_of_turn>userWhat is recession?<end_of_turn><start_of_turn>model
for user_prompt, bot_response in history:
prompt += f"<start_of_turn>user{user_prompt}<end_of_turn>"
prompt += f"<start_of_turn>model{bot_response}"
prompt += f"<start_of_turn>user{message}<end_of_turn><start_of_turn>model"
return prompt
def generate(
prompt, history, temperature=0.9, max_new_tokens=256, top_p=0.95, repetition_penalty=1.0,
):
if not history:
history = []
hist_len=0
if history:
hist_len=len(history)
print(hist_len)
temperature = float(temperature)
if temperature < 1e-2:
temperature = 1e-2
top_p = float(top_p)
generate_kwargs = dict(
temperature=temperature,
max_new_tokens=max_new_tokens,
top_p=top_p,
repetition_penalty=repetition_penalty,
do_sample=True,
seed=42,
)
formatted_prompt = format_prompt(prompt, history)
stream = client.text_generation(formatted_prompt, **generate_kwargs, stream=True, details=True, return_full_text=False)
output = ""
for response in stream:
output += response.token.text
yield output
return output
additional_inputs=[
gr.Slider(
label="Temperature",
value=0.9,
minimum=0.0,
maximum=1.0,
step=0.05,
interactive=True,
info="Higher values produce more diverse outputs",
),
gr.Slider(
label="Max new tokens",
value=512,
minimum=0,
maximum=1048,
step=64,
interactive=True,
info="The maximum numbers of new tokens",
),
gr.Slider(
label="Top-p (nucleus sampling)",
value=0.90,
minimum=0.0,
maximum=1,
step=0.05,
interactive=True,
info="Higher values sample more low-probability tokens",
),
gr.Slider(
label="Repetition penalty",
value=1.2,
minimum=1.0,
maximum=2.0,
step=0.05,
interactive=True,
info="Penalize repeated tokens",
)
]
# Create a Chatbot object with the desired height
chatbot = gr.Chatbot(height=450,
layout="bubble")
with gr.Blocks() as demo:
gr.HTML("<h1><center>🤖 Google-Gemma-7B-Chat 💬<h1><center>")
gr.ChatInterface(
generate,
chatbot=chatbot, # Use the created Chatbot object
additional_inputs=additional_inputs,
examples=[["What is the meaning of life?"], ["Tell me something about Mt Fuji."]],
)
demo.queue().launch(debug=True) |