Google has announced that its generative AI model, Gemini, is now available to enterprises for app development in three sizes: Ultra, Pro, and Nano. The Pro version is accessible via API with certain usage limitations for free, and it offers features such as a 32K context window for text generation. Google has also introduced additional updates in the AI space, including an upgraded Imagen 2 text-to-image diffusion tool and a family of foundation models fine-tuned for the healthcare industry, called MedLM, via Vertex AI.