Grammarly is controlled from a country outside the EU and lacks confirmed EU data storage: processing effectively takes place in a third country. That makes the tool unsuitable for sensitive personal data without additional safeguards. For non-personal data (drafts, public material) it is usually fine.
Facts that decide
Vendor jurisdiction
Outside EU (Superhuman Platform Inc. (formerly Grammarly))
EU data storage
No
GDPR terms / DPA
Stated to be available, verify in your contract
Certifications
ISO 27001, ISO 27701, ISO 27017, ISO 27018, ISO 42001, SOC 2
France's answer to ChatGPT: the AI chat Le Chat from Mistral AI in Paris, one of the few European models in the top class. Data is stored within the EU, with a GDPR data processing addendum and certifications for SOC 2 Type II as well as ISO 27001 and 27701. A free tier is available to start with.
European model in the top class, developed by Mistral AI in Paris.
Data storage within the EU, with a GDPR processing addendum and certifications for SOC 2 Type II as well as ISO 27001/27701.
Does not quite reach the level of the largest American models.
Best for: A Swedish consultant or agency that wants a powerful AI chat for quotes and emails without handing data to an American provider.
No, Grammarly has no confirmed EU data storage: data is processed in a third country.
Is Grammarly covered by the CLOUD Act?
The vendor is based outside the EU. US companies are covered by the CLOUD Act regardless of server location; see the tool page for details.
What is needed to use Grammarly in a GDPR-safe way?
Sign a data processing agreement (DPA) if the tool processes personal data on your behalf, minimise the personal data you feed in, and check the vendor's sub-processors. See our DPA guide for the steps.
Our assessment is based on verified data about vendor, storage and certifications (2026). GDPR compliance also depends on how you use the tool. This is guidance, not legal advice. See How we review.