Spaces:
Running
on
Zero
Running
on
Zero
#!/usr/bin/env python | |
import os | |
from threading import Thread | |
from typing import Iterator | |
import gradio as gr | |
import spaces | |
import torch | |
from transformers import AutoModelForCausalLM, AutoTokenizer, TextIteratorStreamer | |
HF_TOKEN = os.environ['HF_TOKEN'] | |
MAX_MAX_NEW_TOKENS = 2048 | |
DEFAULT_MAX_NEW_TOKENS = 1024 | |
MAX_INPUT_TOKEN_LENGTH = int(os.getenv("MAX_INPUT_TOKEN_LENGTH", "4096")) | |
if torch.cuda.is_available(): | |
model_id = "Rijgersberg/GEITje-7B-chat" | |
model = AutoModelForCausalLM.from_pretrained(model_id, torch_dtype=torch.float16, device_map="auto", token=HF_TOKEN) | |
tokenizer = AutoTokenizer.from_pretrained(model_id, token=HF_TOKEN) | |
def generate( | |
message: str, | |
chat_history: list[tuple[str, str]], | |
max_new_tokens: int = 1024, | |
temperature: float = 0.06, | |
top_p: float = 0.95, | |
top_k: int = 40, | |
repetition_penalty: float = 1.2, | |
) -> Iterator[str]: | |
conversation = [] | |
for user, assistant in chat_history: | |
conversation.extend([{"role": "user", "content": user}, {"role": "assistant", "content": assistant}]) | |
conversation.append({"role": "user", "content": message}) | |
input_ids = tokenizer.apply_chat_template(conversation, 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_new_tokens, | |
do_sample=True, | |
top_p=top_p, | |
top_k=top_k, | |
temperature=temperature, | |
num_beams=1, | |
repetition_penalty=repetition_penalty, | |
) | |
t = Thread(target=model.generate, kwargs=generate_kwargs) | |
t.start() | |
outputs = [] | |
for text in streamer: | |
outputs.append(text) | |
yield "".join(outputs) | |
chat_interface = gr.ChatInterface( | |
fn=generate, | |
chatbot=gr.Chatbot(height=450, | |
label="GEITje-chat", | |
show_share_button=True, | |
show_copy_button=True, | |
avatar_images=('geitje-logo.jpg', None), | |
bubble_full_width=False), | |
additional_inputs=[ | |
gr.Slider( | |
label="Max new tokens", | |
minimum=1, | |
maximum=MAX_MAX_NEW_TOKENS, | |
step=1, | |
value=DEFAULT_MAX_NEW_TOKENS, | |
), | |
gr.Slider( | |
label="Temperature", | |
minimum=0., | |
maximum=1.2, | |
step=0.05, | |
value=0.2, | |
), | |
gr.Slider( | |
label="Top-p (nucleus sampling)", | |
minimum=0.05, | |
maximum=1.0, | |
step=0.05, | |
value=0.9, | |
), | |
gr.Slider( | |
label="Top-k", | |
minimum=1, | |
maximum=1000, | |
step=1, | |
value=50, | |
), | |
gr.Slider( | |
label="Repetition penalty", | |
minimum=1.0, | |
maximum=2.0, | |
step=0.05, | |
value=1.2, | |
), | |
], | |
examples=[ | |
["""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?"], | |
["Kan je naar de maan fietsen?"], | |
["Wat is het belang van open source taalmodellen?"], | |
], | |
title="π GEITje 7B Chat π", | |
description="""Een eerste chatbot op basis van GEITje 7B: een groot open Nederlands taalmodel. Gemaakt voor demonstratiedoeleinden. | |
Generatieve taalmodellen maken fouten, controleer daarom feiten voordat je ze overneemt. GEITje Chat is niet uitgebreid getraind om _gealigned_ te zijn met menselijke waarden. Het is daarom mogelijk dat het problematische output genereert, zeker als het daartoe _geprompt_ wordt. | |
Voor meer info over GEITje: zie de <a href="https://github.com/Rijgersberg/GEITje">π README op GitHub</a>.""", | |
submit_btn="Genereer", | |
stop_btn="Stop", | |
retry_btn="π Opnieuw", | |
undo_btn="β©οΈ Ongedaan maken", | |
clear_btn="ποΈ Wissen", | |
) | |
with gr.Blocks(css="style.css") as demo: | |
chat_interface.render() | |
if __name__ == "__main__": | |
demo.queue(max_size=20).launch() | |