Llama 2: open source large language model
Llama 2: open source large language model from Meta AI
**Features**:
1. **Scale**: Models ranging from 7B to 70B parameters.
2. **Data Training**: Trained on 2 trillion tokens.
3. **Enhanced Context**: Double the context length of Llama 1.
4. **Human Annotations**: Fine-tuned with over 1 million human annotations.
5. **Llama Chat**: A specialized version for chat applications.
6. **Code Llama**: A code generation model that supports major programming languages.
**Benefits**:
1. **Performance**: Outperforms many other open source models in benchmarks.
2. **Versatility**: Suitable for a wide range of applications, from chatbots to code generation.
3. **Open Source**: Available for free for both research and commercial use, promoting wide accessibility and innovation.
4. **Safety and Responsibility**: Continuous testing and guidelines ensure that the models are used responsibly and ethically.
**How it Works**:
– **Training**: Llama 2 is pretrained on a massive 2 trillion tokens from publicly available online data sources. This vast data set ensures a wide range of knowledge and context.
– **Specialized Models**:
– **Llama Chat**: Leverages public datasets and human annotations to optimize chat interactions.
– **Code Llama**: Built on the base of Llama 2 but specifically trained on 500B tokens of code, it can generate and understand code across multiple programming languages.