AssemblyAI

Speech AI API for transcription, understanding, and audio intelligence

WellSaid Labs

Enterprise AI text-to-speech platform with studio-quality voice avatars

AssemblyAI

Moderate

13/25

WellSaid Labs

Moderate

12/25

Score Breakdown

DimensionAssemblyAIWellSaid Labs

Data Residency

Where is your data stored and processed?

AssemblyAI: Audio data is processed on US infrastructure; no EU data region is available as a standard offering.

WellSaid Labs: Data hosted on US cloud infrastructure. No EU data residency option publicly disclosed.

2/5

Audio data is processed on US infrastructure; no EU data region is available as a standard offering.

2/5

Data hosted on US cloud infrastructure. No EU data residency option publicly disclosed.

Legal Jurisdiction

Which laws govern the company and your data?

AssemblyAI: US-incorporated under Delaware law and subject to CLOUD Act with limited EU-specific legal protections.

WellSaid Labs: US Delaware corporation. Subject to US jurisdiction and CLOUD Act.

2/5

US-incorporated under Delaware law and subject to CLOUD Act with limited EU-specific legal protections.

2/5

US Delaware corporation. Subject to US jurisdiction and CLOUD Act.

Data Retention & Training

Is your data used for model training?

AssemblyAI: Does not train on customer audio by default; PII redaction available and data deletion controls provided.

WellSaid Labs: Customer text content not used for model training. Voice avatars created ethically with consent. Clear data handling policies for enterprise clients.

4/5

Does not train on customer audio by default; PII redaction available and data deletion controls provided.

3/5

Customer text content not used for model training. Voice avatars created ethically with consent. Clear data handling policies for enterprise clients.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

AssemblyAI: SOC 2 Type II and HIPAA compliance are in place; ISO 27001 certification is not currently listed.

WellSaid Labs: SOC 2 certified. Demonstrates enterprise-grade security controls appropriate for handling corporate content.

3/5

SOC 2 Type II and HIPAA compliance are in place; ISO 27001 certification is not currently listed.

3/5

SOC 2 certified. Demonstrates enterprise-grade security controls appropriate for handling corporate content.

Regulatory Fit

Suitability for regulated industries and professional services

AssemblyAI: Requires substantial due diligence for EU regulated audio use cases; DPA available but US jurisdiction remains a concern.

WellSaid Labs: SOC 2 supports general enterprise use. Suitable for corporate training and marketing content production. Not specifically designed for highly regulated sectors.

2/5

Requires substantial due diligence for EU regulated audio use cases; DPA available but US jurisdiction remains a concern.

2/5

SOC 2 supports general enterprise use. Suitable for corporate training and marketing content production. Not specifically designed for highly regulated sectors.

Total Score

13/25

12/25

Best For

AssemblyAI

Best for privacy-conscious teams who need strong data retention controls; teams on a tight budget.

WellSaid Labs

Best for enterprises requiring SSO integration.

Detailed Comparison

AssemblyAI vs WellSaid Labs: Trust & Compliance Comparison

AssemblyAI (AssemblyAI, US) scores 13/25 overall with a Bronze (Moderate) trust badge. Speech AI API for transcription, understanding, and audio intelligence. WellSaid Labs (WellSaid Labs, US) scores 12/25 with a Bronze (Moderate) trust badge. Enterprise AI text-to-speech platform with studio-quality voice avatars.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 2/5.

●AssemblyAI (2/5): Audio data is processed on US infrastructure; no EU data region is available as a standard offering.

●WellSaid Labs (2/5): Data hosted on US cloud infrastructure. No EU data residency option publicly disclosed.

#### Legal Jurisdiction

Both score equally at 2/5.

●AssemblyAI (2/5): US-incorporated under Delaware law and subject to CLOUD Act with limited EU-specific legal protections.

●WellSaid Labs (2/5): US Delaware corporation. Subject to US jurisdiction and CLOUD Act.

#### Data Retention & Training

AssemblyAI leads with 4/5 vs 3/5.

●AssemblyAI (4/5): Does not train on customer audio by default; PII redaction available and data deletion controls provided.

●WellSaid Labs (3/5): Customer text content not used for model training. Voice avatars created ethically with consent. Clear data handling policies for enterprise clients.

#### Certifications

Both score equally at 3/5.

●AssemblyAI (3/5): SOC 2 Type II and HIPAA compliance are in place; ISO 27001 certification is not currently listed.

●WellSaid Labs (3/5): SOC 2 certified. Demonstrates enterprise-grade security controls appropriate for handling corporate content.

#### Regulatory Fit

Both score equally at 2/5.

●AssemblyAI (2/5): Requires substantial due diligence for EU regulated audio use cases; DPA available but US jurisdiction remains a concern.

●WellSaid Labs (2/5): SOC 2 supports general enterprise use. Suitable for corporate training and marketing content production. Not specifically designed for highly regulated sectors.

Certifications at a Glance

Certification	AssemblyAI	WellSaid Labs
HIPAA	Yes	No
SOC 2	No	Yes
SOC 2 Type II	Yes	No

Overall Verdict

AssemblyAI and WellSaid Labs are closely matched on trust and compliance, with scores of 13/25 and 12/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, AssemblyAI or WellSaid Labs?

AssemblyAI has a TrustKit score of 13/25 while WellSaid Labs scores 12/25. AssemblyAI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do AssemblyAI and WellSaid Labs compare on data residency?

AssemblyAI scores 2/5 for data residency (Audio data is processed on US infrastructure; no EU data region is available as a standard offering.), while WellSaid Labs scores 2/5 (Data hosted on US cloud infrastructure. No EU data residency option publicly disclosed.).

Are AssemblyAI and WellSaid Labs GDPR compliant?

Both tools are assessed across five compliance dimensions. AssemblyAI has a regulatory fit score of 2/5 and WellSaid Labs scores 2/5. Check the full comparison above for a detailed breakdown.

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