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from threading import Thread
import gradio as gr
from huggingface_hub import InferenceClient
import spaces
from transformers import AutoTokenizer, AutoModelForCausalLM, TextIteratorStreamer
model_id = "CohereForAI/aya-expanse-8b"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id).to("cuda")
@spaces.GPU
def generate(
message,
history: list[tuple[str, str]],
system_message,
max_tokens,
temperature,
top_p):
conversation = [{"role": "system", "content": system_message}]
for user, assistant in history:
conversation.extend([{"role": "user", "content": user}, {"role": "assistant", "content": assistant}])
conversation.append({"role": "user", "content": message})
input_ids = tokenizer.apply_chat_template(conversation, tokenize=True, add_generation_prompt=True, return_tensors="pt")
# if input_ids.shape[1] > MAX_INPUT_TOKEN_LENGTH:
# input_ids = input_ids[:, -MAX_INPUT_TOKEN_LENGTH:]
# gr.Warning(f"Trimmed input from conversation as it was longer than {MAX_INPUT_TOKEN_LENGTH} tokens.")
input_ids = input_ids.to(model.device)
streamer = TextIteratorStreamer(tokenizer, timeout=10.0, skip_prompt=True, skip_special_tokens=True)
generate_kwargs = dict(
{"input_ids": input_ids},
streamer=streamer,
max_new_tokens=max_tokens,
do_sample=True,
top_p=top_p,
temperature=temperature,
)
t = Thread(target=model.generate, kwargs=generate_kwargs)
t.start()
outputs = []
for text in streamer:
outputs.append(text)
yield "".join(outputs)
"""
For information on how to customize the ChatInterface, peruse the gradio docs: https://www.gradio.app/docs/chatinterface
"""
demo = gr.ChatInterface(
generate,
cache_examples=False,
additional_inputs=[
gr.Textbox(value="Je bent een vriendelijke, behulpzame chatbot", label="System message"),
gr.Slider(minimum=1, maximum=2048, value=512, step=1, label="Max new tokens"),
gr.Slider(minimum=0.1, maximum=4.0, value=0.7, step=0.1, label="Temperature"),
gr.Slider(
minimum=0.1,
maximum=1.0,
value=0.95,
step=0.05,
label="Top-p (nucleus sampling)",
),
],
examples=[
["""Vraagje: welk woord hoort er niet in dit rijtje thuis: "auto, vliegtuig, geit, bus"?"""],
["Schrijf een nieuwsbericht voor De Speld over de inzet van een kudde geiten door het Nederlands Forensisch Instituut"],
["Wat zijn 3 leuke dingen om te doen als ik een weekendje naar Friesland ga?"],
["Met wie trad clown Bassie op?"],
["Kan je naar de maan fietsen?"],
["Wat is het belang van open source taalmodellen?"],
],
title="Aya Expanse 8B demo",
)
if __name__ == "__main__":
demo.launch()
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