Llama-2-13B: Your Smart Chat Companion

Welcome to Llama-2-13B, your intelligent chat companion powered by the 13 billion parameter model from the Llama-2 family of large language models developed by Meta. Whether you need assistance, information, or simply want to engage in a conversation, our Llama-2-13B chatbot is here to assist you.

About Llama-2-13B

Llama-2-13B is a fine-tuned generative text model optimized for dialogue use cases. It is part of the Llama-2 collection, which includes models ranging from 7 billion to 70 billion parameters. The 13B model is designed to excel in providing helpful and safe responses, outperforming many open-source chat models and competing with popular closed-source models like ChatGPT and PaLM.

Model Architecture

Llama-2-13B is built on an auto-regressive language model with an optimized transformer architecture. Its fine-tuning process incorporates supervised fine-tuning (SFT) and reinforcement learning with human feedback (RLHF) to ensure that responses align with human preferences for helpfulness and safety.

Training Data

This model was trained on a diverse mix of publicly available online data, with a training dataset size of 2 trillion tokens. Importantly, the pretraining data does not include user data, prioritizing privacy and security.

How to Use Llama-2-13B

Using Llama-2-13B is straightforward. Just type your message using the following template, and our chatbot will provide you with a relevant response:

### User:
{your_message}

For optimal results, make sure to follow the provided formatting guidelines, including INST and <> tags, BOS and EOS tokens, and maintaining appropriate whitespace and line breaks. You can explore the reference code on our GitHub repository for more details.

Intended Use

Llama-2-13B is intended for both commercial and research use in English. It is particularly well-suited for assistant-like chat interactions. However, pretrained models like this one can also be adapted for a wide range of natural language generation tasks.

Please note that using Llama-2-13B in ways that violate applicable laws or regulations, including trade compliance laws, is strictly prohibited. Additionally, it should only be used in English, and any usage that contradicts the Acceptable Use Policy and Licensing Agreement for Llama-2-13B is not allowed.

Evaluation Results

Llama-2-13B has undergone extensive evaluation on various benchmarks, demonstrating its impressive performance. It excels in tasks related to commonsense reasoning, world knowledge, reading comprehension, math, and more.

Safety Benchmarks

The model has also been evaluated on safety benchmarks, including TruthfulQA and ToxiGen. It consistently generates truthful and informative responses while minimizing toxic content.

Ethical Considerations and Limitations

Llama-2-13B is a powerful tool with inherent risks. While it has been primarily tested in English, it may produce unpredictable responses in certain scenarios. Therefore, developers should conduct safety testing and tuning tailored to their specific applications before deployment.

For responsible usage guidelines, please refer to our Responsible Use Guide available at Llama-2-13B Responsible Use Guide.

Get Started with Llama-2-13B

Now that you're familiar with Llama-2-13B, feel free to start a conversation or ask any questions you may have. Our chatbot is ready to assist you with your queries and engage in meaningful conversations.

Thank you for choosing Llama-2-13B as your chat companion, and we look forward to assisting you!