The Gemini paper by Google DeepMind presents advanced multimodal AI models capable of integrating and processing text, images, audio, and video within a single framework. The initial model, Gemini 1.0, is offered in three sizes—Ultra, Pro, and Nano—each designed for different levels of complexity. The updated version, Gemini 1.5, significantly enhances the model's ability to understand long contexts, handling up to 1 million tokens using a Mixture-of-Experts architecture. This architecture improves efficiency and enables more complex reasoning.