Does Stensul use OpenAI?
Yes
We hold strong evidence for this.
- The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.
How we know
About Stensul
Stensul provides an AI governance platform for enterprise marketing campaigns that checks content for brand, legal, accessibility, and compliance at each stage. It serves enterprise email marketers in regulated industries such as financial services, healthcare, insurance, and hospitality.
Summarized from its homepage on 11 Nov 2026.
What else Stensul uses
Stensul has evidence for 27 vendors. The strongest:
Google Cloud
MongoDB
Sentry
Ably
Amazon Web Services
Databricks
Mailgun
Microsoft
Other companies using OpenAI
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- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call