Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
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
Copy.ai
Pros
+Good range of marketing templates
+Generous free tier
+Easy to use
+Strong for short-form copy like ads and social posts
Cons
−Output quality inconsistent on longer content
−Less powerful than general LLMs for complex writing
−Brand voice features limited on lower tiers
Our take— Leonardo.ai wins
Based on our comparison of published pricing, features, and compliance data, Leonardo.ai pulls ahead with a free tier. Copy.ai counters with multi-factor authentication. Leonardo.ai scores 7.6/10 to Copy.ai's 7.6/10. Pick Leonardo.ai if you need a free tier; pick Copy.ai if multi-factor authentication matters.