Definition
The law deciding whether AI-made material can be owned, and whether using copyrighted work to build AI is legal.
At a glance
- A work made entirely by AI from a prompt cannot be copyrighted in the U.S.[1] Only the parts a human meaningfully created, edited, or arranged are protected.[4]
- Whether training AI on copyrighted material counts as legal “fair use” is unsettled — courts now decide case by case.[2]
- Using pirated content as training data weighs heavily against fair use; Anthropic settled one such case for $1.5 billion.[3]
Can you own AI output?
Only the human parts. Typing a prompt does not give you enough control to be the “author,” so a fully AI-generated image or paragraph is free for anyone to copy. You own work you substantially edit or creatively arrange.[1]
Is training on others’ work legal?
It depends. The Copyright Office says some training is fair use and some is not, especially when AI competes in the original’s market or uses pirated sources.[2] Courts agree it is fact-specific — Anthropic’s training was ruled fair use, but its pirated books were not.[3]
What to do
Bottom line
You own only what you meaningfully shape — and whether training AI on others’ work is legal is still being decided court by court.