AWS Lambda MicroVMs vs Shardflux

AWS Lambda MicroVMs costs $0.0997 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. AWS Lambda MicroVMs runs Firecracker microVMs and limits a session to 8 hours. Shardflux runs Firecracker microVMs and offers GPUs.

Updated Oct 15, 2026

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

Shardflux

Serverless VMs for cloud agents that park when idle and keep their state.

Isolation: Firecracker microVM
Free tier: 30-day Pro trial, no card needed
Max session: Not listed

Visit site Shardflux profile

What is different

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

Field

AWS Lambda MicroVMs

Shardflux

vCPU, per hour: AWS Lambda MicroVMs: $0.0997; Shardflux: $0.04
RAM, per GiB-hour: AWS Lambda MicroVMs: $0.0132; Shardflux: $0.015
Storage: AWS Lambda MicroVMs: Snapshot storage $0.08 per GB-month (US East). Snapshot write $0.0038 per GB. Snapshot read $0.00155 per GB.; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Billing: AWS Lambda MicroVMs: Per second; Shardflux: Active CPU time only
Largest sandbox: AWS Lambda MicroVMs: 4 vCPU · 8 GiB; Shardflux: 32 vCPU · 64 GiB
SDKs: AWS Lambda MicroVMs: Python, JavaScript; Shardflux: TypeScript, Python

Full comparison

18 fields, at each provider's list price

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

Shardfluxshardflux.dev/#pricingshardflux.dev

Pricing

vCPU, per hour: AWS Lambda MicroVMs: $0.0997; Shardflux: $0.04
RAM, per GiB-hour: AWS Lambda MicroVMs: $0.0132; Shardflux: $0.015
Storage: AWS Lambda MicroVMs: Snapshot storage $0.08 per GB-month (US East). Snapshot write $0.0038 per GB. Snapshot read $0.00155 per GB.; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier: AWS Lambda MicroVMs: Not listed; Shardflux: 30-day Pro trial, no card needed
Paid plan from: AWS Lambda MicroVMs: Not listed; Shardflux: $9 / month
Billing: AWS Lambda MicroVMs: Per second; Shardflux: Active CPU time only

Limits

Max session: AWS Lambda MicroVMs: 8 hours; Shardflux: Not listed
Idle stop: AWS Lambda MicroVMs: Not listed; Shardflux: Not listed
Largest sandbox: AWS Lambda MicroVMs: 4 vCPU · 8 GiB; Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes: AWS Lambda MicroVMs: Not listed; Shardflux: Up to 200

Platform

Isolation: AWS Lambda MicroVMs: Firecracker microVM; Shardflux: Firecracker microVM
GPU: AWS Lambda MicroVMs: Not listed; Shardflux:
Snapshots: AWS Lambda MicroVMs:; Shardflux:
Pause and resume: AWS Lambda MicroVMs:; Shardflux:

Developer

SDKs: AWS Lambda MicroVMs: Python, JavaScript; Shardflux: TypeScript, Python
Integrations: AWS Lambda MicroVMs: Not listed; Shardflux: Claude Code, MCP

Trust

License: AWS Lambda MicroVMs: Not listed; Shardflux: Not listed
BYOC: AWS Lambda MicroVMs: Not listed; Shardflux: Not listed

Hourly cost

One sandbox running for one hour

Size

AWS Lambda MicroVMs

Shardflux

1 vCPU · 2 GiB: AWS Lambda MicroVMs: $0.126; Shardflux: $0.070
2 vCPU · 4 GiB: AWS Lambda MicroVMs: $0.252; Shardflux: $0.140
4 vCPU · 8 GiB: AWS Lambda MicroVMs: $0.504; Shardflux: $0.280

Compute only, at list rates.

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Which one fits

Based on the fields above

Shardflux fits when

You need GPUs.
You use Claude Code or MCP.
You want the lower list price: $0.140 against $0.252 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.

More comparisons

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AWS Lambda MicroVMs

Shardflux

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

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