AWS Lambda MicroVMs Enter Agent Sandbox Market at 3x the Price of EU Rivals

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AWS launched Lambda MicroVMs on 23 June 2026, offering isolated virtual machines designed for AI- and user-generated code execution, with up to 16 vCPUs, 32 GB of memory, and eight hours of runtime. The service uses Firecracker virtualization — the same underlying technology already used by existing competitors such as E2B, Modal, and orkestr. AWS holds clear advantages in sandbox size, IAM and VPC integration, and proven scale, having run Firecracker across over 15 trillion Lambda invocations per month. However, Lambda MicroVMs are priced at roughly three times the per-vCPU cost of some rivals and currently offer only one European region, compared to three offered by orkestr. The choice between providers largely comes down to existing AWS infrastructure dependency, required sandbox size, data residency requirements, and cost structure.

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