Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Microsoft Copilot
Pros
+Built into Microsoft 365
+Strong enterprise security and compliance
+SOC2 and GDPR certified
+No separate subscription if you have M365
Cons
−Limited standalone value outside Microsoft ecosystem
−Less capable than ChatGPT or Claude for general tasks
−Requires M365 licence
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
Our take— HeyGen wins
Based on our comparison of published pricing, features, and compliance data, HeyGen pulls ahead with API access. Microsoft Copilot counters with ISO 27001 certification. HeyGen scores 8.0/10 to Microsoft Copilot's 7.8/10. Pick HeyGen if you need API access; pick Microsoft Copilot if ISO 27001 certification matters.