2. Dataset Sources and Ownership, Synthetic Data

Midjourney models are trained on a dataset that consists of a mixture of the following source categories:

Publicly available data: Content crawled from the public web and those from publicly accessible repositories.

Data from third parties and Midjourney users: Non-public data from third party providers and data our users provide through use of the Midjourney service.

Internally generated data: Data generated and annotated internally by Midjourney, including synthetic data to help support various training objectives and supplement real-world data.

3. Dataset Characteristics

The training data used to train Midjourney models encompass a diverse range of content types, including images across a variety of subjects and categories, the textual metadata associated with these images, and human-provided annotations, ratings, and preferences to help reinforce model learning.