Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Kling AI
Pros
+Wide creative tooling: text-to-video, image-to-video, AI avatars, lip-sync, and motion control
+Developer API available with per-second pricing for video generation (klingai.com/dev)
+Kling 3.0 supports up to 4K resolution and native audio generation
+International-facing platform with English-language interface
Cons
−Consumer subscription pricing not verifiable from official English-language pages
−GDPR, SOC2, and ISO 27001 compliance not confirmed from official sources
−Data residency and training practices not publicly documented in accessible pages
Relevance AI
Pros
+No-code builder for complex multi-agent workflows
+Trusted by large enterprises including Canva and Databricks
+2,000+ integrations including calling and meeting agents
+Built-in A/B testing and agent evaluations
Cons
−Enterprise-only pricing — no published self-serve tiers
−GDPR and SOC2 not confirmed from official sources
−Not suitable for individuals or small teams
Our take— Relevance AI wins
Based on our comparison of published pricing, features, and compliance data, Relevance AI scores 7.5/10 to Kling AI's 7.0/10. Relevance AI pulls ahead with multi-factor authentication and enterprise-grade readiness. Kling AI stays close but doesn't lead on any single attribute here. Pick Relevance AI if multi-factor authentication matters; Kling AI is the pick if it doesn't.