app.py

import os
from datasets import load_dataset
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer, TrainingArguments
from trl import SFTTrainer

# Load the model and tokenizer
model_name = "microsoft/phi-4-multimodal-instruct"
model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype=torch.bfloat16)
tokenizer = AutoTokenizer.from_pretrained(model_name)

# Load the dataset
dataset = load_dataset("openai/gsm8k", "main")["train"]

# Preprocess the dataset
def preprocess_function(examples):
    return tokenizer(examples["question"], padding="max_length", truncation=True)

dataset = dataset.map(preprocess_function, batched=True)

# Define the training arguments
training_args = TrainingArguments(
    output_dir="./results",
    per_device_train_batch_size=4,
    gradient_accumulation_steps=4,
    learning_rate=2e-5,
    num_train_epochs=1,
    fp16=True,
    logging_dir="./logs",
    report_to="none",
)

# Create the SFT trainer
trainer = SFTTrainer(
    model=model,
    train_dataset=dataset,
    args=training_args,
    tokenizer=tokenizer,
)

# Train the model
trainer.train()

# Save the model
trainer.save_model("./results")