Question 1

Does Grammarly train on API and business data?

Accepted Answer

Off for sales-bought plans only. "For multi-user team accounts purchased directly through our website, Product Improvement and Training will initially be on, and an admin can opt out for their entire organization."

Question 2

Does Grammarly train on consumer app data?

Accepted Answer

Yes, on by default. "Product Improvement and Training is on for individual users by default."

Question 3

Grammarly: how long are API inputs kept?

Accepted Answer

Kept as long as necessary. "We retain personal data for as long as necessary to provide our products to you"

Question 4

Grammarly: how do you opt out of training?

Accepted Answer

Account privacy setting. "You can opt out of allowing Grammarly to use your content to train its models and improve its product for everyone."

Question	Question, answer and clauseAnswer and clause
Does it train on API and business data?	Does it train on API and business data?Off for sales-bought plans only(Depends) “For multi-user team accounts purchased directly through our website, Product Improvement and Training will initially be on, and an admin can opt out for their entire organization.” Product Improvement and Training Control On the page Sep 25, 2026
Does it train on consumer app data?	Does it train on consumer app data?Yes, on by default(Uses your data) “Product Improvement and Training is on for individual users by default.” Product Improvement and Training Control On the page Sep 25, 2026
How long are API inputs kept?	How long are API inputs kept?Kept as long as necessary(Depends) “We retain personal data for as long as necessary to provide our products to you...” Privacy Policy On the page Sep 25, 2026
How do you opt out of training?	How do you opt out of training?Account privacy setting(Protective) “You can opt out of allowing Grammarly to use your content to train its models and improve its product for everyone.” Grammarly User Trust Center On the page Sep 25, 2026
Is zero data retention available?	Is zero data retention available?Not stated on the watched pages.
Is there a public subprocessor list?	Is there a public subprocessor list?Not stated on the watched pages.
Where is data processed and stored?	Where is data processed and stored?Not stated on the watched pages.

Page	Kind	Changed	Checked
Grammarly User Trust Centergrammarly.com	Help article	No change seen	Sep 25, 2026live page
Privacy Policygrammarly.com	Privacy policy	No change seen	Sep 25, 2026live page
Product Improvement and Training Controlsupport.grammarly.com	Help article	No change seen	Sep 25, 2026live page

Grammarly data terms: training, retention, opt-out

What the terms say

Changes

Watched pages

Terms changes by email