AWS Graviton processors feature 64-bit Arm Neoverse cores and custom silicon designed by AWS, delivering optimized performance and cost. AWS Graviton processors are built exclusively for the cloud, utilizing AWS and Annapurna Labs' expertise in running hyperscale cloud platforms and cloud applications. Amazon EC2 A1 instances are the first instances powered by the AWS Graviton processor. In this session, learn how you can optimize cost and performance for your scale-out and Arm-based workloads using EC2 instances based on AWS Graviton processors. We present use cases, software ecosystem, and customer adoption stories for EC2 A1 instances.