Llama 2 Models

**Overview**

The Llama_2 models are large language models (LLMs) developed by Meta AI. The models provided in this listing are

- [llama_2_7b_hf](https://huggingface.co/meta-llama/Llama-2-7b-hf)
- [llama_2_13b_hf](https://huggingface.co/meta-llama/Llama-2-13b-hf)
- [llama_2_7b_chat_hf](https://huggingface.co/meta-llama/Llama-2-7b-chat-hf)
- [llama_2_13b_chat_hf](https://huggingface.co/meta-llama/Llama-2-13b-chat-hf)
- [llama_2_70b_chat_hf](https://huggingface.co/meta-llama/Llama-2-70b-chat-hf)

The models are packaged using MLflow’s transformers flavor.
- [llama_2_7b_chat_hf](https://huggingface.co/meta-llama/Llama-2-7b-chat-hf), [llama_2_13b_chat_hf](https://huggingface.co/meta-llama/Llama-2-13b-chat-hf), [llama_2_70b_chat_hf](https://huggingface.co/meta-llama/Llama-2-70b-chat-hf): fine-tuned for dialogue-based use cases.
- [llama_2_7b_hf](https://huggingface.co/meta-llama/Llama-2-7b-hf), [llama_2_13b_hf](https://huggingface.co/meta-llama/Llama-2-13b-hf): pretrained generative text model that can be used for further fine-tuning on specific applications.

Llama_2 models are licensed under the [LLAMA 2 Community License, Copyright © Meta Platforms, Inc. All Rights Reserved](https://ai.meta.com/resources/models-and-libraries/llama-downloads/). By installing this listing, you acknowledge and agree to the license.

For example notebooks of using the llama_2 model in various use cases on Databricks, refer to [the Databricks ML example repository](https://github.com/databricks/databricks-ml-examples/tree/master/llm-models/llamav2).

**Use cases**

[llama_2_7b_chat_hf](https://huggingface.co/meta-llama/Llama-2-7b-chat-hf), [llama_2_13b_chat_hf](https://huggingface.co/meta-llama/Llama-2-13b-chat-hf), [llama_2_70b_chat_hf](https://huggingface.co/meta-llama/Llama-2-70b-chat-hf):
- Generating responses to text-based instructions
- Chatbots and conversational AI systems
[llama_2_7b_hf](https://huggingface.co/meta-llama/Llama-2-7b-hf), [llama_2_13b_hf](https://huggingface.co/meta-llama/Llama-2-13b-hf):
- Fine-tuning on specific applications.

**Product details**

The pre-trained model can be used for further fine-tuning on specific applications. The fine-tuned model in this listing can be deployed directly to Databricks Model Serving for immediate use, or loaded for fine-tuning or batch inference use cases. For more details, install the listing and view the provided model cards for each model.

搜集汇总

背景与挑战

背景概述

Llama 2 Models是由Meta AI开发的一系列大语言模型，包含预训练生成文本模型和针对对话场景微调的模型，这些模型以MLflow的transformers风格打包，并遵循LLAMA 2 Community License许可协议。它们可用于文本生成、聊天机器人等应用，并支持在Databricks平台上进行部署和进一步微调。