Llama 2

Llama 2 is the next generation of Meta AI's open-source large language model. It is available for free for both research and commercial use. The model has been trained on an impressive 2 trillion tokens, and its range of pretrained and fine-tuned Llama language models varies from 7B to 70B parameters.

The release of Llama 2 includes model weights and starting code for the pretrained and fine-tuned language models. These models have double the context length compared to Llama 1 and have been fine-tuned using over 1 million human annotations.

Llama 2 outperforms other open-source language models on various external benchmarks, including reasoning, coding, proficiency, and knowledge tests. The model was pretrained on publicly available online data sources and leverages publicly available instruction datasets.

Meta AI has established partnerships with global companies and supporters who share their open approach to AI. These partners provide early feedback and are excited to collaborate and build with Llama 2. Cloud providers are also planning to include the model as part of their offerings to customers.

Responsibility is a key aspect of Meta AI's approach. They are committed to building responsibly and have established various resources, including a Responsible Use Guide, Safety Red-teaming, and the Generative AI Community Forum, to promote a responsible and collaborative AI innovation ecosystem.

For those interested in exploring Llama 2 further, the website offers resources like the research paper detailing the model, a technical overview, and information on how to get access.

Overall, Llama 2 represents a significant advancement in open-source large language models, offering powerful capabilities and a responsible approach to AI innovation.