Mistral-7B-Banking

Model Description

This model, "Mistral-7B-Banking", is a fine-tuned version of the mistralai/Mistral-7B-Instruct-v0.2, specifically tailored for the Banking domain. It is optimized to answer questions and assist users with various banking transactions. It has been trained using hybrid synthetic data generated using our NLP/NLG technology and our automated Data Labeling (DAL) tools.

The goal of this model is to show that a generic verticalized model makes customization for a final use case much easier. For example, if you are "ACME Bank", you can create your own customized model by using this fine-tuned model and a doing an additional fine-tuning using a small amount of your own data. An overview of this approach can be found at: From General-Purpose LLMs to Verticalized Enterprise Models

Intended Use

• Recommended applications: This model is designed to be used as the first step in Bitext’s two-step approach to LLM fine-tuning for the creation of chatbots, virtual assistants and copilots for the Banking domain, providing customers with fast and accurate answers about their banking needs.
• Out-of-scope: This model is not suited for non-banking related questions and should not be used for providing health, legal, or critical safety advice.

Usage Example

from transformers import AutoModelForCausalLM, AutoTokenizer
import torch

device = 'cuda' if torch.cuda.is_available() else 'cpu'

model = AutoModelForCausalLM.from_pretrained("bitext/Mistral-7B-Banking-v2")
tokenizer = AutoTokenizer.from_pretrained("bitext/Mistral-7B-Banking-v2")

messages = [
    {"role": "system", "content": "You are an expert in customer support for Banking."},
    {"role": "user", "content": "I want to open a bank account"},
]

encoded = tokenizer.apply_chat_template(messages, return_tensors="pt")

model_inputs = encoded.to(device)
model.to(device)

generated_ids = model.generate(model_inputs, max_new_tokens=1000, do_sample=True)
decoded = tokenizer.batch_decode(generated_ids)
print(decoded[0])

Model Architecture

This model utilizes the MistralForCausalLM architecture with a LlamaTokenizer, ensuring it retains the foundational capabilities of the base model while being specifically enhanced for banking-related interactions.

Training Data

The model was fine-tuned on a dataset comprising various banking-related intents, including transactions like balance checks, money transfers, loan applications, and more, totaling 89 intents each represented by approximately 1000 examples. This comprehensive training helps the model address a broad spectrum of banking-related questions effectively. The dataset follows the same structured approach as our dataset published on Hugging Face as bitext/Bitext-customer-support-llm-chatbot-training-dataset, but with a focus on banking.

Training Procedure

Hyperparameters

• Optimizer: AdamW
• Learning Rate: 0.0002 with a cosine learning rate scheduler
• Epochs: 3
• Batch Size: 4
• Gradient Accumulation Steps: 4
• Maximum Sequence Length: 8192 tokens

Environment

• Transformers Version: 4.43.4
• Framework: PyTorch 2.3.1+cu121
• Tokenizers: Tokenizers 0.19.1

Limitations and Bias

• The model is trained for banking-specific contexts but may underperform in unrelated areas.
• Potential biases in the training data could affect the neutrality of the responses; users are encouraged to evaluate responses critically.

Ethical Considerations

It is important to use this technology thoughtfully, ensuring it does not substitute for human judgment where necessary, especially in sensitive financial situations.

Acknowledgments

This model was developed and trained by Bitext using proprietary data and technology.

License

This model, "Mistral-7B-Banking", is licensed under the Apache License 2.0 by Bitext Innovations International, Inc. This open-source license allows for free use, modification, and distribution of the model but requires that proper credit be given to Bitext.

Key Points of the Apache 2.0 License

• Permissibility: Users are allowed to use, modify, and distribute this software freely.
• Attribution: You must provide proper credit to Bitext Innovations International, Inc. when using this model, in accordance with the original copyright notices and the license.
• Patent Grant: The license includes a grant of patent rights from the contributors of the model.
• No Warranty: The model is provided "as is" without warranties of any kind.

You may view the full license text at Apache License 2.0.

This licensing ensures the model can be used widely and freely while respecting the intellectual contributions of Bitext. For more detailed information or specific legal questions about using this license, please refer to the official license documentation linked above.