AutoMQ is a stateless Kafka on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability. - AutoMQ/automq ...

However, both Redpanda and Confluent are based on a Shared-Nothing replication architecture and have adopted tiered storage optimization, so it's unlikely that Redpanda would hold a significant cost ...