The primary outcome for AI producing art is whether we think it is valuable, either aesthetically or monetarily. Across different types of artwork, writing, and music, some research finds a penalty for the aesthetic value for art, whereas other research does not find a penalty. In contrast, there is more consistent evidence for a machine penalty for the monetary value of art. A penalty for art often relates to the identity and authenticity of the creation. People tend to diminish art more when they care about who or what created it, and when they consider and care about its authenticity. AI-produced art makes it easier to create quick, high-quality art with specific criteria but also means there is a glut of AI art. This quantity can serve to cheapen it overall, whereas human creations still require time and effort, leading them to be valued more.