Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
HeyGen
Pros
+SOC 2 Type II certified with a dedicated Data Protection Officer
+175 languages with AI lip-sync — broadest language support in category
+Free tier includes 3 videos and a custom digital twin
+API access from Creator tier for workflow automation
Cons
−Uses user content to train models by default — opt-out required
−Credit costs for Avatar IV/V are 20× higher than Avatar III
−Business tier at £117/mo is expensive for smaller teams
Leonardo.ai
Pros
+GDPR compliant — UK GDPR and EU GDPR explicitly listed in ToS
+Free tier confirmed in ToS — usable without payment
+API available with separate billing for developer integration
+Wide range of fine-tuned models for games, concept art, and illustration
Cons
−Pricing not verified — official site inaccessible to automated tools; check leonardo.ai for current plans
−Free user content used to train AI models — paid private content exempt
−SOC2 and ISO 27001 not confirmed from official sources
Our take— HeyGen wins
Based on our comparison of published pricing, features, and compliance data, HeyGen pulls ahead with multi-factor authentication and enterprise-grade readiness. Leonardo.ai stays close but doesn't lead on any single attribute here. HeyGen scores 8.0/10 to Leonardo.ai's 7.6/10. If multi-factor authentication matters, go HeyGen; if it doesn't, Leonardo.ai.