| Primary Use Case | High-throughput event streaming, data pipelines | B2B partner ecosystem integration |
| Integration Model | Topic-based streaming | Partner-centric workspaces |
| Partner Onboarding | Manual topic/consumer setup, complex configuration | Self-service via developer portal |
| Scalability | Horizontal partitioning (extreme throughput for data pipelines) | High throughput for partner integrations at scale |
| Message Delivery | At-least-once (configurable to exactly-once) | Guaranteed delivery + replay |
| Message Ordering | Partition-level ordering only | Ordered delivery per event type |
| Access Control | ACLs per topic (complex to manage) | Two-layer: permissions + subscriptions |
| Partner Visibility | Limited (requires custom tooling) | Full observability dashboard per partner |
| Message Retention | Configurable (days to weeks, storage-dependent) | Up to 30 days (plan-based) |
| Replay Capability | Consumer offset management (complex) | Built-in replay (simple) |
| Schema Management | Schema Registry (separate component) | Structured events with versioning (built-in) |
| Bidirectional Communication | Requires separate topics | Native bidirectional with targeted delivery |
| Partner Self-Service | No | Embedded developer portal |
| Developer Experience | Steep learning curve, ops-heavy | Lightweight SDK, consistent API |
| Operational Complexity | High (ZooKeeper, brokers, monitoring) | Low (managed service) |
| Time to First Integration | Days to weeks | Minutes |
| Maintenance Burden | High (cluster management, rebalancing) | Low (centralized, managed) |
| Cost Model | Infrastructure + operational overhead | Platform fee (scales with usage) |
| Best For | High-volume event streaming, analytics, data pipelines | B2B partner integrations at scale |