Suri-I-ORPO

Suri-I-ORPO is a fine-tuned version of mistralai/Mistral-7B-Instruct-v0.2 using instructional odds ratio preference optimization (I-ORPO). Please check our paper for more details on the method.

📒 Model Details

Model Description

• Language(s) (NLP): English
• License: Apache-2.0
• Finetuned from model: mistralai/Mistral-7B-Instruct-v0.2

Model Sources

• Repository: Github repository -- contains code to reconstruct books3 subset.
• Paper: TODO
• Demo: Website

⚠️ Getting Started

Use the code in this repository for training and inference.

💻 Training Details

Training Data

chtmp223/suri

Training Procedure

Configurations	Values
Hardware (Training and Inference)	4xA100s
Tracking	wandb
lora_r	16
lora_alpha	16
lora_dropout	0.05
beta	0.4
gradient_accumulation_steps	1
gradient_checkpointing	True
learning_rate	5.0e-5
lr_scheduler_type	cosine
max_length	15024
max_completion_length	15000
max_prompt_length	5000
num_train_epochs	2
optim	adamw_torch
per_device_train_batch_size	1

Software

Training code is adapted from Alignment Handbook and Trl.

🤗 Inference

from transformers import AutoTokenizer, AutoModelForCausalLM
from peft import PeftModel, PeftConfig
from datasets import load_dataset
import torch
os.environ["TOKENIZERS_PARALLELISM"] = "False"
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
torch.cuda.empty_cache()

model_name = "chtmp223/suri-i-orpo"
base_model_name = "mistralai/Mistral-7B-Instruct-v0.2"
config = PeftConfig.from_pretrained(model_name)
base_model = AutoModelForCausalLM.from_pretrained(base_model_name).to(device)
model = PeftModel.from_pretrained(base_model, model_name).to(device)
tokenizer = AutoTokenizer.from_pretrained(base_model_name)
prompt = [
  {
      "role": "user",
      "content": user_prompt, 
  }
]
input_context = tokenizer.apply_chat_template(
  prompt, add_generation_prompt=True, tokenize=False
)
input_ids = tokenizer.encode(
  input_context, return_tensors="pt", add_special_tokens=False
).to(model.device)
output = model.generate(
  input_ids, max_length=10000, do_sample=True, use_cache=True
).cpu()

print(tokenizer.decode(output[0]))

📜 Citation

@misc{pham2024surimulticonstraintinstructionfollowing,
      title={Suri: Multi-constraint Instruction Following for Long-form Text Generation}, 
      author={Chau Minh Pham and Simeng Sun and Mohit Iyyer},
      year={2024},
      eprint={2406.19371},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2406.19371}, 
}

⚙️ Framework versions

• PEFT 0.11.1