What A Brand Is Actually Licensing From A Stock Library

A stock library sells pictures the way an insurer sells paperwork. The image is the visible part. The licence is the product.
That distinction was easy to ignore while the alternative was an expensive commissioned shoot. It matters now that a usable image can be generated in seconds, because the second image comes with no paperwork at all.
What The Stock Library Licence Actually Covers
Three things a brand cannot manufacture for itself. Permission from the photographer, which is straightforward. Permission from the people in the frame, which is not. And an indemnity, which is the library's promise to stand behind the first two if somebody sues.
A generated image resolves the first and is silent on the second. There is no model release for a face that was never a person, which sounds like an advantage until a court is asked whether that face resembles somebody who is.
Why Legal Teams Have Noticed
Because the risk moved rather than disappeared. Under a stock licence the library carries a defined share of it. With generated imagery it sits with whoever published the campaign, which is the brand, and it sits there without a ceiling.
That is why the more cautious advertisers have not stopped using stock. They have started using it for anything involving a recognisable human being, and generating the rest.
Nobody was ever buying the photograph. They were buying somebody to stand behind it.
What Libraries Are Selling Next
Provenance. A documented chain showing where an image came from and what it was trained on is the only thing a library has that a generator does not, and it happens to be the thing procurement departments are starting to ask for.
For agencies the practical rule is unglamorous. Decide per asset, not per campaign, and write down which route was taken for each one, because the question will be asked later by somebody who was not there.
Related: likeness rights in Indian advertising.
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