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Llama Dive
Latest   Machine Learning

Llama Dive

Last Updated on October 31, 2024 by Editorial Team

Author(s): Derrick Mwiti

Originally published on Towards AI.

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Photo by Gustavo EspΓ­ndola on Unsplash

It’s no doubt that generative AI will change every industry. The current state of generative AI, particularly text-to-image generation and text generation is a culmination of years of research. For example, current large language models (LLM) are based on the Transformer architecture that was invented by Google in 2017. The U-Net model is a critical part of current text-to-image generation models such as stable diffusion.

The generative AI space has shown massive potential courtesy of highly performant models such as Stable Diffusion from Stability AI and Llama by Meta AI. In this post, the focus will be on the Llama model that has been trained on trillions of tokens. Llama 2 is particularly revolutionary because of its performance and permissive license.

Llama 2 was trained on 40% more data compared to Llama 1. Llama 2-Chat is a fine-tuned version of Llama 2 for chat. The Llama 2 model was trained using grouped-query attention to improve inference scalability.

Llama 2 training is done as follows:

Pretraining using publicly available datasetsCreate LLama 2-Chat using supervised fine-tuningFurther training using Reinforcement Learning with Human Feedback (RLHF)

https://arxiv.org/pdf/2307.09288.pdf

Notable technical details about Llama 2 are,… Read the full blog for free on Medium.

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