Does Mailchimp Use Your Data for AI Training? Plus HubSpot, Ahrefs and Other Marketing Tools
PolicyPeek rates Mailchimp Policy unclear. Its terms say “You may select preferences about your data by visiting your account settings.” The only documented setting (Data analytics) never mentions AI, models or training, so the published pages do not clearly say whether Mailchimp uses your data for training or whether that setting would stop it. HubSpot and Zapier train by default but let you opt out; Semrush, n8n, Frase and Writesonic say they don’t train. (Mailchimp on PolicyPeek)
Last checked: 10 November 2026. Verdicts come from each company’s own published policy, read by PolicyPeek. Not legal advice.
What does Mailchimp’s policy say?
From Mailchimp’s terms (page shows “Updated October 10, 2025”), as re-read by PolicyPeek on 10 November 2026:
“We may use your Inputs and Outputs, including Customer Data, for machine learning purposes in order to develop and improve the AI Model, the Services, and similar products and features, and you instruct us to process Customer Data for such purposes. You may select preferences about your data by visiting your account settings.”
Mailchimp’s account settings help page describes one data setting, “Data analytics”:
“If you prefer not to share your data, you can opt out of data analytics.”
“To opt out, scroll to the Data analytics setting heading and uncheck the box next to Include my data in Mailchimp’s data analytics projects.”
That help page doesn’t say the setting covers AI or machine learning, so the published pages do not clearly say whether it would stop training use. (Mailchimp)
Can I stop HubSpot training on my data?
Yes. HubSpot’s own help article says the AI training setting is on by default and Super Admins can opt out at any time, and that the same terms apply to the free CRM. (HubSpot)
How do other marketing and automation tools compare?
| Tool | PolicyPeek verdict | What the policy says (PolicyPeek summary) | Source | Last checked |
|---|---|---|---|---|
| Mailchimp | Policy unclear | The terms point to account settings. The only documented setting (Data analytics) never mentions AI, models or training, so the published pages do not clearly say whether this use is on by default or whether that setting would stop it. | terms | 2026-11-10 |
| HubSpot | Trains by default, you can opt out | HubSpot “may use customer data … to train and improve HubSpot’s own AI models.” “By default, the setting will be turned on.” “Super Admins can opt out of AI model training at any time”. Same terms on the free CRM. | policy | 2026-10-24 |
| Ahrefs | Trains on your data, no opt-out | Terms say “we may use User Content, including any content you provide to us in connection with your use of AI Tools, to train our machine learning models”; no opt-out found. | policy | 2026-10-24 |
| Semrush | Doesn’t train on your data | “Semrush does not train or develop its models, and does not allow its third-party providers to train or develop its models on User Input.” | policy | 2026-10-24 |
| Buffer | Policy unclear | Asked “Does Buffer scrape my content to train the AI?”, Buffer says text entered in AI Assistant “will be shared with OpenAI” but never states whether training happens; legal pages are silent. | policy | 2026-10-24 |
| Zapier | Trains by default, you can opt out | “Enterprise customers are automatically opted out of Zapier using their content for model training and improvement purposes. All other customers may opt out at any time.” | policy | 2026-10-24 |
| n8n | Doesn’t train on your data | “We do not use any personal data, including data received through any third-party services, for developing, improving, or training AI and/or ML models.” | policy | 2026-10-24 |
| Frase | Doesn’t train on your data | “Frase does not use Customer Data to develop or train generalized artificial intelligence or machine learning models”. | policy | 2026-10-24 |
| Writesonic | Doesn’t train on your data | “Writesonic does not use Customer Data to train or fine-tune any general-purpose, foundation, or large-language model”, which “applies equally to… any Trial or free tier”. | policy | 2026-10-24 |
| Copy.ai | Policy unclear | We retain different types of Personal Data for different periods, depending on the purposes for processing the information, our legitimate business purposes as well as pursuant to legal requirements. | policy | 2026-09-03 |
| Jasper | Policy unclear | For the purpose of the GDPR, the Company is the Data Controller. | policy | 2026-09-03 |
Which marketing tools don’t train on your data?
Semrush, n8n, Frase and Writesonic, according to their own policies. Writesonic says its promise “applies equally to… any Trial or free tier”. (All tools)
How PolicyPeek decides
An AI model extracts the facts from the company’s own policy, then fixed rules pick the badge. Uncertain results are held for human review. Each tool page links the exact policy it used and the date it was checked. (Methodology)
Changes
- 10 November 2026: Mailchimp moved to Policy unclear. The published pages do not clearly say whether data is used for training or whether the Data analytics setting would stop it.
- 4 November 2026: Mailchimp, Copy.ai and Jasper kept on the site with their existing verdicts while PolicyPeek re-checks them.
- 28 October 2026: Mailchimp terms and help-page text quoted word for word.
FAQ
Does Mailchimp use my data for AI training?
Its terms say: “You may select preferences about your data by visiting your account settings.” The only documented setting (Data analytics) never mentions AI, models or training. The published pages do not clearly say whether Mailchimp uses your data for training or whether that setting would stop it.
Can I opt out of Mailchimp AI training?
Not clearly stated. The terms say “You may select preferences about your data by visiting your account settings.” The only setting Mailchimp’s help page describes is “Data analytics”: “To opt out, scroll to the Data analytics setting heading and uncheck the box next to Include my data in Mailchimp’s data analytics projects.” That page doesn’t mention AI training.
Does HubSpot train AI on my data?
By default, yes, but HubSpot says Super Admins can opt out of AI model training at any time, including on the free CRM.
Does Ahrefs train on my data?
Ahrefs’ terms say it may use User Content, including content you give its AI tools, to train its machine learning models. No opt-out was found.
Does Buffer train AI on my posts?
Unclear. Buffer says AI Assistant text is shared with OpenAI but doesn’t say whether training happens, so PolicyPeek rates it ‘Policy unclear’.
Last updated . Plain-text version for AI tools: does-mailchimp-use-your-data-for-ai-training.md.