Llama 2 vs. Galactica

We are excited to unveil the latest version of our open-source large language model, which includes model weights and initial code for the pretrained and fine-tuned Llama language models, ranging from 7 billion to 70 billion parameters. The Llama 2 pretrained models have been crafted using a remarkable 2 trillion tokens and boast double the context length compared to the first iteration, Llama 1. Additionally, the fine-tuned models have been refined through the insights gained from over 1 million human annotations. Llama 2 showcases outstanding performance compared to various other open-source language models across a wide array of external benchmarks, particularly excelling in reasoning, coding abilities, proficiency, and knowledge assessments. For its training, Llama 2 leveraged publicly available online data sources, while the fine-tuned variant, Llama-2-chat, integrates publicly accessible instruction datasets alongside the extensive human annotations mentioned earlier. Our project is backed by a robust coalition of global stakeholders who are passionate about our open approach to AI, including companies that have offered valuable early feedback and are eager to collaborate with us on Llama 2. The enthusiasm surrounding Llama 2 not only highlights its advancements but also marks a significant transformation in the collaborative development and application of AI technologies. This collective effort underscores the potential for innovation that can emerge when the community comes together to share resources and insights.

The vast quantity of information present today creates a considerable hurdle for scientific progress. As the volume of scientific literature and data grows exponentially, discovering valuable insights within this enormous expanse of information has become a daunting task. In the present day, individuals are increasingly dependent on search engines to retrieve scientific knowledge; however, these tools often fall short in effectively organizing and categorizing such intricate data. Galactica emerges as a cutting-edge language model specifically engineered to capture, synthesize, and analyze scientific knowledge. Its training encompasses a wide range of scientific resources, including research papers, reference texts, and knowledge databases. In a variety of scientific assessments, Galactica consistently outperforms existing models, showcasing its exceptional capabilities. For example, when evaluated on technical knowledge tests that involve LaTeX equations, Galactica scores 68.2%, which is significantly above the 49.0% achieved by the latest GPT-3 model. Additionally, Galactica demonstrates superior reasoning abilities, outdoing Chinchilla in mathematical MMLU with scores of 41.3% compared to 35.7%, and surpassing PaLM 540B in MATH with an impressive 20.4% in contrast to 8.8%. These results not only highlight Galactica's role in enhancing access to scientific information but also underscore its potential to improve our capacity for reasoning through intricate scientific problems. Ultimately, as the landscape of scientific inquiry continues to evolve, tools like Galactica may prove crucial in navigating the complexities of modern science.