HashiCorp Consul has successfully demonstrated its ability to scale with thousands of nodes and hundreds of thousands of services in under 1 second. The company conducted a benchmark test with Datadog and Amazon Web Services, testing the control plane scalability of Consul with 10,000 virtual machines. The results show that Consul's control plane can deliver updates to 172,000 service instances in under 1 second, highlighting its ability to handle large-scale environments. This achievement demonstrates Consul's reliability at scale, making it suitable for enterprise use cases and encouraging users to try running the product at their required scale.