Slack AI

AI-powered search, summaries, and workflows built into Slack

Notion AI

AI-powered workspace for notes, wikis, projects, and content generation

Slack AI

Strong

20/25

Notion AI

Strong

20/25

Score Breakdown

DimensionSlack AINotion AI

Data Residency

Where is your data stored and processed?

Slack AI: Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.

Notion AI: EU data residency available for Enterprise customers; US hosting for lower tiers

4/5

Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.

4/5

EU data residency available for Enterprise customers; US hosting for lower tiers

Legal Jurisdiction

Which laws govern the company and your data?

Slack AI: Incorporated in Delaware, US. As a Salesforce subsidiary, subject to US laws including the CLOUD Act. Offers EU data processing agreements and Standard Contractual Clauses.

Notion AI: US Delaware corporation; EU residency option reduces CLOUD Act exposure for Enterprise

3/5

Incorporated in Delaware, US. As a Salesforce subsidiary, subject to US laws including the CLOUD Act. Offers EU data processing agreements and Standard Contractual Clauses.

3/5

US Delaware corporation; EU residency option reduces CLOUD Act exposure for Enterprise

Data Retention & Training

Is your data used for model training?

Slack AI: Administrators can configure custom data retention policies. Enterprise Grid offers granular retention controls. Data can be exported and deleted on request.

Notion AI: Customer data not used to train AI models; data retained per workspace settings

4/5

Administrators can configure custom data retention policies. Enterprise Grid offers granular retention controls. Data can be exported and deleted on request.

4/5

Customer data not used to train AI models; data retained per workspace settings

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Slack AI: Comprehensive certification portfolio including SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, and ISO 42001. One of the most thoroughly certified collaboration platforms.

Notion AI: SOC 2 Type II, ISO 27001/17/18/701 all certified; AI included in scope

5/5

Comprehensive certification portfolio including SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, and ISO 42001. One of the most thoroughly certified collaboration platforms.

5/5

SOC 2 Type II, ISO 27001/17/18/701 all certified; AI included in scope

Regulatory Fit

Suitability for regulated industries and professional services

Slack AI: Supports GDPR, CCPA, HIPAA, FINRA, and FedRAMP compliance. Enterprise Grid plan includes features for regulated industries including eDiscovery and data loss prevention.

Notion AI: Strong fit for EU organisations on Enterprise plan with data residency; good overall compliance posture

4/5

Supports GDPR, CCPA, HIPAA, FINRA, and FedRAMP compliance. Enterprise Grid plan includes features for regulated industries including eDiscovery and data loss prevention.

4/5

Strong fit for EU organisations on Enterprise plan with data residency; good overall compliance posture

Total Score

20/25

Best For

Slack AI

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27017); regulated industries (ICO); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Notion AI

Best for organisations requiring broad certification coverage (SOC 2 Type II, SOC 3, ISO 27001); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Notion AI vs Slack AI: Trust & Compliance Comparison

Notion AI (Notion Labs, Inc., US) scores 20/25 overall with a Silver (Strong) trust badge. AI-powered workspace for notes, wikis, projects, and content generation. Slack AI (Salesforce, US) scores 20/25 with a Silver (Strong) trust badge. AI-powered search, summaries, and workflows built into Slack.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 4/5.

●Notion AI (4/5): EU data residency available for Enterprise customers; US hosting for lower tiers

●Slack AI (4/5): Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.

#### Legal Jurisdiction

Both score equally at 3/5.

●Notion AI (3/5): US Delaware corporation; EU residency option reduces CLOUD Act exposure for Enterprise

●Slack AI (3/5): Incorporated in Delaware, US. As a Salesforce subsidiary, subject to US laws including the CLOUD Act. Offers EU data processing agreements and Standard Contractual Clauses.

#### Data Retention & Training

Both score equally at 4/5.

●Notion AI (4/5): Customer data not used to train AI models; data retained per workspace settings

●Slack AI (4/5): Administrators can configure custom data retention policies. Enterprise Grid offers granular retention controls. Data can be exported and deleted on request.

#### Certifications

Both score equally at 5/5.

●Notion AI (5/5): SOC 2 Type II, ISO 27001/17/18/701 all certified; AI included in scope

●Slack AI (5/5): Comprehensive certification portfolio including SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, and ISO 42001. One of the most thoroughly certified collaboration platforms.

#### Regulatory Fit

Both score equally at 4/5.

●Notion AI (4/5): Strong fit for EU organisations on Enterprise plan with data residency; good overall compliance posture

●Slack AI (4/5): Supports GDPR, CCPA, HIPAA, FINRA, and FedRAMP compliance. Enterprise Grid plan includes features for regulated industries including eDiscovery and data loss prevention.

Certifications at a Glance

Certification	Notion AI	Slack AI
ISO 27001	Yes	Yes
ISO 27017	Yes	Yes
ISO 27018	Yes	Yes
ISO 27701	Yes	Yes
SOC 2 Type II	Yes	Yes
SOC 3	No	Yes

Overall Verdict

Notion AI and Slack AI are closely matched on trust and compliance, with scores of 20/25 and 20/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, Slack AI or Notion AI?

Slack AI has a TrustKit score of 20/25 while Notion AI scores 20/25. Both tools are currently rated equally across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Slack AI and Notion AI compare on data residency?

Slack AI scores 4/5 for data residency (Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.), while Notion AI scores 4/5 (EU data residency available for Enterprise customers; US hosting for lower tiers).

Are Slack AI and Notion AI GDPR compliant?

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

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