I reached out to the Artists Management Association and this is the language they have shared with members (short and long).
1. Deliverables not approved for AI use and/or AI training
2. Unless explicitly stated in an invoice, licensee may not use the assets in connection with an immutable digital asset intended for sale, including but not limited to non-fungible tokens. All rights not expressly granted to the licensee are reserved to company and the copyright holder. No machine learning, AI, or biometric technology use. Unless explicitly authorized in the invoice, licensee may not use the asset (s) including any caption information, keywords, or other metadata associated with content) for any machine learning and / or artificial intelligence purposes, or for any technologies designed or intended for the identification of natural persons.
visit https://artistmanagementassociation.org to learn more.