OpenAI has introduced a new feature in beta testing for ChatGPT Plus customers. Here are the details:
The feature now supports uploading multiple file types, including PDFs and data files, for ChatGPT to analyze or provide supplementary information when answering questions. Additionally, users can directly invoke the desired model, run code, or access DALL-E without the need to switch between different platforms.
Source: The Verge
TLDR: OpenAI has launched a beta feature for ChatGPT Plus, allowing users to upload various file types and directly access specific models or tools within the chat interface.