Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Tabnine
Pros
+Strong privacy — can run locally or on-premise
+Good for enterprise security requirements
+Supports all major IDEs
+GDPR compliant
Cons
−Less capable than Copilot or Cursor on complex tasks
−Smaller model means less context awareness
−Interface less polished
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— Leonardo.ai wins
Based on our comparison of published pricing, features, and compliance data, Leonardo.ai pulls ahead with API access and a free tier. Tabnine counters with multi-factor authentication. Leonardo.ai scores 7.6/10 to Tabnine's 7.5/10. Pick Leonardo.ai if you need API access; pick Tabnine if multi-factor authentication matters.