Stability AI updated its Terms of Service effective September 30, 2026, making several material changes to age requirements, content definitions, use restrictions, and arbitration scope. The company lowered the minimum age for audio services from 18 to 13 years old (with parental consent required for users under 18), while maintaining 18 as the minimum for all other services. The terms expanded the definition of 'Content' to include audio and video inputs, broadened restrictions on competitive AI development and model training, added prohibitions on removing AI-generated watermarks and content credentials, and clarified that organization administrators can now edit or remove user activity and content. The arbitration clause was narrowed to apply only to US users, removing Canada from its scope.
Developers: You cannot use Stability AI outputs to build or improve competing AI tools without explicit written permission.
All users: You cannot strip or hide the AI-generated watermark or metadata from outputs.
Parents: If your child uses audio services, you must agree to the terms and supervise their use.
Consumers: Canadian users are no longer subject to mandatory arbitration for disputes with Stability AI.
Business accounts: Organization administrators can now edit or delete user activity and content, not just view it.
The updated terms expand access to audio services for younger users (13+) but require parental consent and supervision for those under 18, shifting responsibility to parents. For developers and researchers, the terms now explicitly restrict using Stability AI outputs to develop, train, or improve competing AI models, with exceptions only when expressly approved in writing. The terms also prohibit removing watermarks or content credentials that identify outputs as AI-generated. For US users, mandatory arbitration now applies; Canada is no longer subject to the arbitration clause. You can review the full updated terms to understand how these restrictions affect your intended use of the services.
→ If you are a parent or legal guardian of a user aged 13-17, review the updated terms and confirm you understand your responsibility for supervising their use of audio services.
→ If you develop or train AI models, review the expanded restrictions on competitive AI model training and confirm you have written approval from Stability before using outputs for model development or fine-tuning.
Lowered from 18 to 13 years old, with parental consent and supervision required for users under 18.
Expanded to prohibit using outputs to develop, train, fine-tune, or improve any competing AI model or system without written approval.
Added new restriction prohibiting removal, obscuring, or circumvention of watermarks and content credentials identifying outputs as AI-generated.
This change record describes what was added, removed, or modified in the document. Analysis reflects what the updated agreement states or permits. It does not constitute a legal determination about enforceability. Applicability may vary by jurisdiction. Methodology
Wording edits to this record that do not change what it claims. Changes to a claim are published as corrections.
Stability AI materially revised its terms effective September 30, 2026, with changes affecting age-gating, AI training restrictions, content control, and dispute resolution scope. The lowering of the audio services minimum age to 13 (with parental …
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