Canvas is a new feature in ChatGPT that allows users to interact with the AI in a side-by-side mode, enhancing document editing and debugging experiences. Users can input their content on one side while receiving structured feedback from ChatGPT on the other, effectively refining their communication and organization skills. This dual-panel approach facilitates deeper engagement with the material, particularly for those facing cognitive challenges. The release of Canvas is seen as a significant evolution in user interfaces, where AI assists in improving existing documents and running code. The product appears to be well-received, offering practical benefits while highlighting ongoing challenges in AI communication and search functionalities.