The 18th issue of The Comet Newsletter highlights recent developments in AI ethics and new technological projects from major tech companies. A report by Reuters investigates how big tech firms like Google and Microsoft are navigating AI ethics, debating self-regulation versus governmental oversight, particularly in areas such as predictive AI and speech technology. The newsletter also introduces a new Python package from TensorFlow, designed to simplify training similarity models using contrastive deep learning, and discusses Google's innovative approach to generating 3D dance movements via a transformer model. Additionally, Facebook AI's Generative Spoken Language Model (GSLM) aims to overcome the limitations of traditional text-based NLP by learning from raw audio signals, enabling advancements in expressive speech generation. These projects underscore ongoing efforts to enhance AI capabilities while addressing ethical considerations and technical challenges.