Leonardo AI

Australian AI platform for high-quality image and video generation with fine-tuning

Synthesia

AI video generation platform for creating professional videos with AI avatars

Leonardo AI

Caution

9/25

Synthesia

Strong

21/25

Score Breakdown

DimensionLeonardo AISynthesia

Data Residency

Where is your data stored and processed?

Leonardo AI: US-only infrastructure on AWS; no EU data residency option; Australian company with US hosting

Synthesia: EU data processing available for European customers on AWS EU infrastructure

1/5

US-only infrastructure on AWS; no EU data residency option; Australian company with US hosting

4/5

EU data processing available for European customers on AWS EU infrastructure

Legal Jurisdiction

Which laws govern the company and your data?

Leonardo AI: Australian Pty Ltd with US infrastructure; CLOUD Act and CISA data sharing framework applies

Synthesia: UK-incorporated company under English law; strong GDPR compliance posture

2/5

Australian Pty Ltd with US infrastructure; CLOUD Act and CISA data sharing framework applies

4/5

UK-incorporated company under English law; strong GDPR compliance posture

Data Retention & Training

Is your data used for model training?

Leonardo AI: Paid tiers excluded from model training; user owns generated content; free tier terms less clear

Synthesia: Customer content not used for AI model training; data retained per contractual terms

3/5

Paid tiers excluded from model training; user owns generated content; free tier terms less clear

4/5

Customer content not used for AI model training; data retained per contractual terms

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Leonardo AI: No ISO 27001 or SOC 2 certifications published as of early 2026

Synthesia: SOC 2 Type II, ISO 27001, and pioneering ISO 42001 AI management certification

1/5

No ISO 27001 or SOC 2 certifications published as of early 2026

5/5

SOC 2 Type II, ISO 27001, and pioneering ISO 42001 AI management certification

Regulatory Fit

Suitability for regulated industries and professional services

Leonardo AI: US hosting and lack of certifications limits EU regulated-sector suitability; fine for creative use

Synthesia: Strong fit for regulated EU and UK organisations; ISO 42001 demonstrates responsible AI governance

2/5

US hosting and lack of certifications limits EU regulated-sector suitability; fine for creative use

4/5

Strong fit for regulated EU and UK organisations; ISO 42001 demonstrates responsible AI governance

Total Score

9/25

21/25

Best For

Leonardo AI

Best for teams on a tight budget.

Synthesia

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 42001); regulated industries (ICO); privacy-conscious teams who need strong data retention controls; enterprises requiring SSO integration.

Detailed Comparison

Leonardo AI vs Synthesia: Trust & Compliance Comparison

Leonardo AI (Leonardo AI, AU) scores 9/25 overall with a Review Required (Caution) trust badge. Australian AI platform for high-quality image and video generation with fine-tuning. Synthesia (Synthesia Limited, GB) scores 21/25 with a Silver (Strong) trust badge. AI video generation platform for creating professional videos with AI avatars.

Dimension-by-Dimension Breakdown

#### Data Residency

Synthesia leads with 4/5 vs 1/5.

●Leonardo AI (1/5): US-only infrastructure on AWS; no EU data residency option; Australian company with US hosting

●Synthesia (4/5): EU data processing available for European customers on AWS EU infrastructure

#### Legal Jurisdiction

Synthesia leads with 4/5 vs 2/5.

●Leonardo AI (2/5): Australian Pty Ltd with US infrastructure; CLOUD Act and CISA data sharing framework applies

●Synthesia (4/5): UK-incorporated company under English law; strong GDPR compliance posture

#### Data Retention & Training

Synthesia leads with 4/5 vs 3/5.

●Leonardo AI (3/5): Paid tiers excluded from model training; user owns generated content; free tier terms less clear

●Synthesia (4/5): Customer content not used for AI model training; data retained per contractual terms

#### Certifications

Synthesia leads with 5/5 vs 1/5.

●Leonardo AI (1/5): No ISO 27001 or SOC 2 certifications published as of early 2026

●Synthesia (5/5): SOC 2 Type II, ISO 27001, and pioneering ISO 42001 AI management certification

#### Regulatory Fit

Synthesia leads with 4/5 vs 2/5.

●Leonardo AI (2/5): US hosting and lack of certifications limits EU regulated-sector suitability; fine for creative use

●Synthesia (4/5): Strong fit for regulated EU and UK organisations; ISO 42001 demonstrates responsible AI governance

Certifications at a Glance

Certification	Leonardo AI	Synthesia
ISO 27001	No	Yes
ISO 42001	No	Yes
SOC 2 Type II	No	Yes

Overall Verdict

Synthesia has a clear trust advantage, scoring 21/25 compared to Leonardo AI's 9/25. Synthesia particularly excels in data residency, legal jurisdiction, data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Leonardo AI or Synthesia?

Leonardo AI has a TrustKit score of 9/25 while Synthesia scores 21/25. Synthesia currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Leonardo AI and Synthesia compare on data residency?

Leonardo AI scores 1/5 for data residency (US-only infrastructure on AWS; no EU data residency option; Australian company with US hosting), while Synthesia scores 4/5 (EU data processing available for European customers on AWS EU infrastructure).

Are Leonardo AI and Synthesia GDPR compliant?

Both tools are assessed across five compliance dimensions. Leonardo AI has a regulatory fit score of 2/5 and Synthesia scores 4/5. Check the full comparison above for a detailed breakdown.

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