Flex Consumption Plan is a new Azure Functions hosting plan that builds on the consumption pay for what you use, serverless billing model, and gives users more flexibility and customizability without compromising on existing capabilities. Now, customers can build serverless Functions-as-a-Service (FaaS) using Azure Functions for higher throughput, improved reliability, better performance, and additional security on their own terms.
New capabilities include fast and large elastic scale, instance size selection, private networking, availability zones, and higher concurrency control. Run your serverless apps for event driven scale with negligible cold-start latency with always ready instances on Flex Consumption.