GPT computer assistant is an application designed for Windows, macOS, and Ubuntu operating systems, aiming to provide an alternative to the ChatGPT application. It allows users to easily install it using the Python library and plans to offer native installation scripts (.exe). The product is supported by Upsonic Tiger, a platform focused on providing functionalities for large language model (LLM) agents. Key benefits include cross-platform compatibility, ease of installation and use, and future support for local models.