How many subprocessors does Stability AI use?

Stability AI lists 4 subprocessors on its published list, including Thorn, Cinder, Amazon Web Services, and OpenRouter.

Does Stability AI use customer data to train AI models?

According to its privacy policy, Stability AI uses customer data to train AI models unless customers opt out: “When we use your Inputs and Outputs to train our models, you can opt-out of our use of this personal data for these training purposes.”

When was Stability AI's subprocessor list last checked?

ClauseTrail last checked Stability AI's subprocessor list on November 2, 2026. Lists are re-checked daily.

How do I find out when Stability AI adds or removes a subprocessor?

ClauseTrail monitors Stability AI's subprocessor list, DPA, privacy policy and terms and emails you the exact change — who was added or removed and what the page said before and after. The first vendors are free.

Stability AI Subprocessors List (November 2026): Changes and History

Stability AI names 4 subprocessors on its published list. Read from the vendor's own page and re-checked daily.

Last checked November 2, 2026 Official source ↗

Stability AI subprocessors (November 2026)

#	Subprocessor	Purpose	Location
1	Thorn	Digital tools to combat child exploitation. Used for filtering datasets of illegal material.	—
2	Cinder	Monitors user input for acceptable user policy violations and manages lists of violations.	—
3	Amazon Web Services	Amazon Web Services (AWS) is housing a lot of our production environments as well as our HPC cluster which is used to train models and do research.	—
4	OpenRouter	If you use the "AI Enhance Prompt" feature, we will use OpenRouter, which uses Mistral AI or DeepInfra.	—

Get an email when Stability AI changes its subprocessors

ClauseTrail re-checks this list every day and tells you exactly who was added or removed — including when a vendor starts sending data to an AI provider. The first vendors are free.

Track Stability AI free

AI and customer data at Stability AI

What Stability AI's own documents say, with the sentence each answer comes from.

Trains AI models on customer data: Yes, unless you opt out

“When we use your Inputs and Outputs to train our models, you can opt-out of our use of this personal data for these training purposes.”
Privacy policy, stability.ai ↗
Sends customer data to AI model providers: Yes

“your Input, including any personal data you include within that Input, may be shared with such third-party service to enable functionality.”
Terms of service, stability.ai ↗
How to opt out: Customers can opt out of having their Inputs and Outputs used for model training via their Account Settings.

“If we use your information for training our models, you can opt-out from your Account Settings.”
Privacy policy, stability.ai ↗

Documents we track for Stability AI

Privacy policy: checked November 3, 2026 stability.ai ↗
Subprocessor list: checked November 2, 2026 trust.stability.ai ↗
Terms of service: checked November 3, 2026 stability.ai ↗
Trust page: checked November 3, 2026 trust.stability.ai ↗

Change history

Tracking since October 17, 2026. No change has been published since; additions, removals and document changes will appear here as they're published.

Stability AI subprocessors FAQ

How many subprocessors does Stability AI use?: Stability AI lists 4 subprocessors on its published list, including Thorn, Cinder, Amazon Web Services, and OpenRouter.
Does Stability AI use customer data to train AI models?: According to its privacy policy, Stability AI uses customer data to train AI models unless customers opt out: “When we use your Inputs and Outputs to train our models, you can opt-out of our use of this personal data for these training purposes.”
When was Stability AI's subprocessor list last checked?: ClauseTrail last checked Stability AI's subprocessor list on November 2, 2026. Lists are re-checked daily.
How do I find out when Stability AI adds or removes a subprocessor?: ClauseTrail monitors Stability AI's subprocessor list, DPA, privacy policy and terms and emails you the exact change — who was added or removed and what the page said before and after. The first vendors are free.