Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Sudowrite
Pros
+Explicit commitment to never training on user manuscripts — confirmed on pricing page
+Specialised fiction tools: character generation, outline, scene expansion
+Claims no rights over user content or generated output
+30+ language support across all plans
Cons
−No free tier — paid plans only
−GDPR and SOC2 not confirmed from official sources
−Fiction-only focus — not suited for marketing copy, email, or business writing
Luma Dream Machine
Pros
+GDPR compliant with EEA/UK data rights (access, correction, deletion)
+High cinematic video quality from both text and image prompts
+Third-party model access alongside native Luma models
+Team and Enterprise plans available for larger organisations
Cons
−No free tier — entry starts at £24/mo (annual billing)
−Uses user content to train AI models
−SOC2 not confirmed from official sources
Our take— Luma Dream Machine wins
Based on our comparison of published pricing, features, and compliance data, Luma Dream Machine scores 7.6/10 to Sudowrite's 7.1/10. Luma Dream Machine pulls ahead with GDPR compliance. Sudowrite counters with a no-training-on-your-data policy. Pick Luma Dream Machine if GDPR compliance matters; pick Sudowrite if a no-training-on-your-data policy matters.