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import torch
from transformers import AutoTokenizer, AutoModelForCausalLM, TextIteratorStreamer
import gradio as gr
from threading import Thread
device = "cpu"
if torch.cuda.is_available():
device = "cuda"
if torch.backends.mps.is_available():
device = "mps"
theme = gr.themes.Base(
font=[gr.themes.GoogleFont('Libre Franklin'), gr.themes.GoogleFont('Public Sans'), 'system-ui', 'sans-serif'],
)
tokenizer = AutoTokenizer.from_pretrained("microsoft/phi-2", trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained(
"microsoft/phi-2",
torch_dtype=torch.float16 if torch.cuda.is_available() else torch.float32,
trust_remote_code=True,
).to(device)
def generate_text(text, temperature, maxLen):
inputs = tokenizer([text], return_tensors="pt").to(device)
streamer = TextIteratorStreamer(tokenizer)
generation_kwargs = dict(inputs, streamer=streamer, max_new_tokens=maxLen, temperature=temperature)
thread = Thread(target=model.generate, kwargs=generation_kwargs)
thread.start()
t = ""
for out in streamer:
t += out
yield t
with gr.Blocks(css="footer{display:none !important}", theme=theme) as demo:
gr.Markdown("""
# (Unofficial) Demo of Microsoft's Phi-2
Not affiliated with Microsoft!
This model is licensed under the [Microsoft Research License](https://huggingface.co/microsoft/phi-2/resolve/main/LICENSE). You may only use it for non-commercial purposes.
Note: for longer generation (>512), keep clicking "Generate!" The demo is currently limited to 512 demos per generation to ensure all users have access to this service. Please note that once you start generating, you cannot stop generating until the generation is done.
By [mrfakename](https://twitter.com/realmrfakename). Inspired by [@randomblock1's demo](https://huggingface.co/spaces/randomblock1/phi-2).
""".strip())
text = gr.Textbox(label="Prompt", lines=10, interactive=True, placeholder="Write a detailed analogy between mathematics and a lighthouse.")
temp = gr.Slider(label="Temperature", minimum=0.1, maximum=1.5, value=0.7)
maxlen = gr.Slider(label="Max Length", minimum=4, maximum=512, value=75)
go = gr.Button("Generate", variant="primary")
go.click(generate_text, inputs=[text, temp, maxlen], outputs=[text])
examples = gr.Examples(
[
['Write a detailed analogy between mathematics and a lighthouse.', 0.7, 75],
['Instruct: Write a detailed analogy between mathematics and a lighthouse.\nOutput:', 0.7, 75],
['Alice: I don\'t know why, I\'m struggling to maintain focus while studying. Any suggestions?\n\nBob: ', 0.6, 150],
['''def print_prime(n):
"""
Print all primes between 1 and n
"""\n''', 0.2, 100],
],
[text, temp, maxlen]
)
if __name__ == "__main__":
demo.launch(show_api=False)
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