Mio 1.0 Pro is a lightweight yet powerful AI assistant model based on Qwen2.5-0.5B-Instruct, enhanced with extended context support and optimized for responsive, high-quality conversations. Designed to run efficiently on resource-constrained environments including CPU-only deployments.

Key Features

494M Parameters - Ultra-lightweight, runs on CPU with ~1.4GB RAM
128K Context Window - Extended context via RoPE scaling (rope_theta: 4,000,000)
Multilingual - Supports 20+ languages including Arabic, English, Chinese, and more
Code Generation - Enhanced in-context learning for programming tasks
CPU Optimized - Runs efficiently without GPU acceleration

Modifications from Base Model

Feature	Base (Qwen2.5-0.5B)	Mio 1.0 Pro
Context Length	32K	128K
RoPE Theta	1,000,000	4,000,000
In-Context Learning	Default	Enhanced code examples

Quick Start

python

from transformers import AutoModelForCausalLM, AutoTokenizer

model_name = "MaxKio/Mio-1.0-Pro"

tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(
    model_name,
    dtype="auto",
    device_map="auto"
)

messages = [
    {"role": "system", "content": "You are Mio 1.0 Pro, an advanced AI assistant."},
    {"role": "user", "content": "Write a Python function to check if a number is prime."}
]

text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(text, return_tensors="pt")
outputs = model.generate(**inputs, max_new_tokens=512)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

Deployment

Mio 1.0 Pro is optimized for lightweight server deployment:

bash

# Minimum requirements
# - RAM: 2GB
# - Disk: 1GB
# - CPU: Any modern x86/ARM processor
# - GPU: Optional (not required)

Supported Languages

English, Arabic, Chinese (Simplified/Traditional), Spanish, French, German, Russian, Japanese, Korean, Portuguese, Italian, Dutch, Polish, Turkish, Vietnamese, Thai, Indonesian, Hindi, and more.

License

Apache 2.0 - This model is built upon Qwen2.5-0.5B-Instruct by Qwen/Alibaba, licensed under Apache 2.0.

Author

MaxKio - HuggingFace Profile