Amazon Bedrock AgentCore Runtime vs AWS Lambda MicroVMs

Amazon Bedrock AgentCore Runtime costs $0.0895 per vCPU-hour and AWS Lambda MicroVMs costs $0.0997 per vCPU-hour. Amazon Bedrock AgentCore Runtime runs microVMs and limits a session to 8 hours. AWS Lambda MicroVMs runs Firecracker microVMs and limits a session to 8 hours.

Updated Oct 23, 2026

Amazon Bedrock AgentCore Runtime

Hosts AI agents on AWS and runs each user session in its own microVM.

Isolation: MicroVM
Free tier: Not listed
Max session: 8 hours

Visit site Amazon Bedrock AgentCore Runtime profile

AWS Lambda MicroVMs

Serverless microVMs on AWS that suspend when idle.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: 8 hours

Visit site AWS Lambda MicroVMs profile

What is different

7 fields differ. The rest are the same or not listed.

Field

Amazon Bedrock AgentCore Runtime

AWS Lambda MicroVMs

vCPU, per hour: Amazon Bedrock AgentCore Runtime: $0.0895; AWS Lambda MicroVMs: $0.0997
RAM, per GiB-hour: Amazon Bedrock AgentCore Runtime: $0.00945; AWS Lambda MicroVMs: $0.0132
Storage: Amazon Bedrock AgentCore Runtime: Session storage is free during preview. Code storage is billed at Amazon ECR or S3 rates; AWS Lambda MicroVMs: Snapshot storage $0.08 per GB-month (US East). Snapshot write $0.0038 per GB. Snapshot read $0.00155 per GB.
Billing: Amazon Bedrock AgentCore Runtime: Active CPU time only; AWS Lambda MicroVMs: Per second
Largest sandbox: Amazon Bedrock AgentCore Runtime: 2 vCPU · 8 GiB; AWS Lambda MicroVMs: 4 vCPU · 8 GiB
Isolation: Amazon Bedrock AgentCore Runtime: MicroVM; AWS Lambda MicroVMs: Firecracker microVM
SDKs: Amazon Bedrock AgentCore Runtime: Python, TypeScript; AWS Lambda MicroVMs: Python, JavaScript

Full comparison

18 fields, at each provider's list price

Amazon Bedrock AgentCore Runtimeaws.amazon.com/bedrock/agentcore/pricingaws.amazon.com

AWS Lambda MicroVMsaws.amazon.com/lambda/pricingaws.amazon.com

Pricing

vCPU, per hour: Amazon Bedrock AgentCore Runtime: $0.0895; AWS Lambda MicroVMs: $0.0997
RAM, per GiB-hour: Amazon Bedrock AgentCore Runtime: $0.00945; AWS Lambda MicroVMs: $0.0132
Storage: Amazon Bedrock AgentCore Runtime: Session storage is free during preview. Code storage is billed at Amazon ECR or S3 rates; AWS Lambda MicroVMs: Snapshot storage $0.08 per GB-month (US East). Snapshot write $0.0038 per GB. Snapshot read $0.00155 per GB.
Free tier: Amazon Bedrock AgentCore Runtime: Not listed; AWS Lambda MicroVMs: Not listed
Paid plan from: Amazon Bedrock AgentCore Runtime: Pay as you go; AWS Lambda MicroVMs: Not listed
Billing: Amazon Bedrock AgentCore Runtime: Active CPU time only; AWS Lambda MicroVMs: Per second

Limits

Max session: Amazon Bedrock AgentCore Runtime: 8 hours; AWS Lambda MicroVMs: 8 hours
Idle stop: Amazon Bedrock AgentCore Runtime: After 15 minutes; AWS Lambda MicroVMs: Not listed
Largest sandbox: Amazon Bedrock AgentCore Runtime: 2 vCPU · 8 GiB; AWS Lambda MicroVMs: 4 vCPU · 8 GiB
Concurrent sandboxes: Amazon Bedrock AgentCore Runtime: Up to 5,000; AWS Lambda MicroVMs: Not listed

Platform

Isolation: Amazon Bedrock AgentCore Runtime: MicroVM; AWS Lambda MicroVMs: Firecracker microVM
GPU: Amazon Bedrock AgentCore Runtime: Not listed; AWS Lambda MicroVMs: Not listed
Snapshots: Amazon Bedrock AgentCore Runtime: Not listed; AWS Lambda MicroVMs:
Pause and resume: Amazon Bedrock AgentCore Runtime:; AWS Lambda MicroVMs:

Developer

SDKs: Amazon Bedrock AgentCore Runtime: Python, TypeScript; AWS Lambda MicroVMs: Python, JavaScript
Integrations: Amazon Bedrock AgentCore Runtime: Claude Agent SDK, LangChain, MCP, OpenAI Agents SDK; AWS Lambda MicroVMs: Not listed

Trust

License: Amazon Bedrock AgentCore Runtime: Not listed; AWS Lambda MicroVMs: Not listed
BYOC: Amazon Bedrock AgentCore Runtime: Not listed; AWS Lambda MicroVMs: Not listed

Hourly cost

One sandbox running for one hour

Size

Amazon Bedrock AgentCore Runtime

AWS Lambda MicroVMs

1 vCPU · 2 GiB: Amazon Bedrock AgentCore Runtime: $0.108; AWS Lambda MicroVMs: $0.126
2 vCPU · 4 GiB: Amazon Bedrock AgentCore Runtime: $0.217; AWS Lambda MicroVMs: $0.252
4 vCPU · 8 GiB: Amazon Bedrock AgentCore Runtime: $0.434; AWS Lambda MicroVMs: $0.504

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Amazon Bedrock AgentCore Runtime fits when

You use the Claude Agent SDK, LangChain, MCP or the OpenAI Agents SDK.
You want the lower list price: $0.217 against $0.252 an hour for 2 vCPU and 4 GiB.
Your code waits a lot: CPU is billed only while it is in use.
You need SOC 2, HIPAA and ISO 27001.

AWS Lambda MicroVMs fits when

You need snapshots.
You need a sandbox larger than 2 vCPU · 8 GiB.

More comparisons

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Amazon Bedrock AgentCore Runtime

AWS Lambda MicroVMs

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Amazon Bedrock AgentCore Runtime fits when

AWS Lambda MicroVMs fits when

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