Claude

Anthropic's safety-focused AI assistant for analysis, writing, and coding

Grammarly

AI writing assistant for grammar, style, clarity, and generative content creation

Claude

Strong

20/25

Grammarly

Strong

17/25

Score Breakdown

DimensionClaudeGrammarly

Data Residency

Where is your data stored and processed?

Claude: Regional processing available via AWS Bedrock, GCP Vertex AI, and Azure in EU, UK, US, and more

Grammarly: Data hosted exclusively in US AWS East; no EU or regional residency option

4/5

Regional processing available via AWS Bedrock, GCP Vertex AI, and Azure in EU, UK, US, and more

2/5

Data hosted exclusively in US AWS East; no EU or regional residency option

Legal Jurisdiction

Which laws govern the company and your data?

Claude: US Delaware PBC subject to CLOUD Act; SCCs and DPAs available for EU transfers

Grammarly: US Delaware corporation subject to CLOUD Act; GDPR compliance via SCCs and DPA

3/5

US Delaware PBC subject to CLOUD Act; SCCs and DPAs available for EU transfers

2/5

US Delaware corporation subject to CLOUD Act; GDPR compliance via SCCs and DPA

Data Retention & Training

Is your data used for model training?

Claude: Commercial customer data never used for model training by default

Grammarly: User data not sold; limited processing for product improvement with user controls

5/5

Commercial customer data never used for model training by default

4/5

User data not sold; limited processing for product improvement with user controls

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Claude: SOC 2 Type II, ISO 27001, ISO 42001, and HIPAA certified

Grammarly: Extensive certification: SOC 2 Type II, ISO 27001/18/701, ISO 42001

4/5

SOC 2 Type II, ISO 27001, ISO 42001, and HIPAA certified

5/5

Extensive certification: SOC 2 Type II, ISO 27001/18/701, ISO 42001

Regulatory Fit

Suitability for regulated industries and professional services

Claude: Suitable for regulated industries including healthcare (HIPAA BAA) and financial services

Grammarly: Strong enterprise compliance posture; US-only hosting limits suitability for EU data residency mandates

4/5

Suitable for regulated industries including healthcare (HIPAA BAA) and financial services

4/5

Strong enterprise compliance posture; US-only hosting limits suitability for EU data residency mandates

Total Score

20/25

17/25

Best For

Claude

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 42001); regulated industries (ICO, HHS); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Grammarly

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27018); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Detailed Comparison

Claude vs Grammarly: Trust & Compliance Comparison

Claude (Anthropic, US) scores 20/25 overall with a Silver (Strong) trust badge. Anthropic's safety-focused AI assistant for analysis, writing, and coding. Grammarly (Grammarly, Inc., US) scores 17/25 with a Silver (Strong) trust badge. AI writing assistant for grammar, style, clarity, and generative content creation.

Dimension-by-Dimension Breakdown

#### Data Residency

Claude leads with 4/5 vs 2/5.

●Claude (4/5): Regional processing available via AWS Bedrock, GCP Vertex AI, and Azure in EU, UK, US, and more

●Grammarly (2/5): Data hosted exclusively in US AWS East; no EU or regional residency option

#### Legal Jurisdiction

Claude leads with 3/5 vs 2/5.

●Claude (3/5): US Delaware PBC subject to CLOUD Act; SCCs and DPAs available for EU transfers

●Grammarly (2/5): US Delaware corporation subject to CLOUD Act; GDPR compliance via SCCs and DPA

#### Data Retention & Training

Claude leads with 5/5 vs 4/5.

●Claude (5/5): Commercial customer data never used for model training by default

●Grammarly (4/5): User data not sold; limited processing for product improvement with user controls

#### Certifications

Grammarly leads with 5/5 vs 4/5.

●Claude (4/5): SOC 2 Type II, ISO 27001, ISO 42001, and HIPAA certified

●Grammarly (5/5): Extensive certification: SOC 2 Type II, ISO 27001/18/701, ISO 42001

#### Regulatory Fit

Both score equally at 4/5.

●Claude (4/5): Suitable for regulated industries including healthcare (HIPAA BAA) and financial services

●Grammarly (4/5): Strong enterprise compliance posture; US-only hosting limits suitability for EU data residency mandates

Certifications at a Glance

Certification	Claude	Grammarly
HIPAA	Yes	No
ISO 27001	Yes	Yes
ISO 27018	No	Yes
ISO 27701	No	Yes
ISO 42001	Yes	Yes
SOC 2 Type II	Yes	Yes

Overall Verdict

Claude has a clear trust advantage, scoring 20/25 compared to Grammarly's 17/25. Claude particularly excels in data residency, legal jurisdiction, data retention & training.

Frequently Asked Questions

Which is better for EU compliance, Claude or Grammarly?

Claude has a TrustKit score of 20/25 while Grammarly scores 17/25. Claude currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Claude and Grammarly compare on data residency?

Claude scores 4/5 for data residency (Regional processing available via AWS Bedrock, GCP Vertex AI, and Azure in EU, UK, US, and more), while Grammarly scores 2/5 (Data hosted exclusively in US AWS East; no EU or regional residency option).

Are Claude and Grammarly GDPR compliant?

Both tools are assessed across five compliance dimensions. Claude has a regulatory fit score of 4/5 and Grammarly scores 4/5. Check the full comparison above for a detailed breakdown.

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