InstaVM vs Shardflux

InstaVM costs $0.0504 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. InstaVM runs Firecracker microVMs. Shardflux runs Firecracker microVMs and offers GPUs.

Updated Oct 15, 2026

InstaVM

Hardware-isolated microVMs for AI agent code.

Isolation: Firecracker microVM
Free tier: $50 credit
Max session: Not listed

Visit site InstaVM 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

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

Field

InstaVM

Shardflux

vCPU, per hour: InstaVM: $0.0504; Shardflux: $0.04
RAM, per GiB-hour: InstaVM: $0.0162; Shardflux: $0.015
Storage: InstaVM: $0.0002 per GiB-hour after 10 free GiB; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier: InstaVM: $50 credit; Shardflux: 30-day Pro trial, no card needed
Paid plan from: InstaVM: $100 / month; Shardflux: $9 / month
Billing: InstaVM: Per second; Shardflux: Active CPU time only
Concurrent sandboxes: InstaVM: Up to 100; Shardflux: Up to 200
SDKs: InstaVM: Python, TypeScript; Shardflux: TypeScript, Python
Integrations: InstaVM: Claude Code; Shardflux: Claude Code, MCP

Full comparison

18 fields, at each provider's list price

InstaVMinstavm.io/pricing

Shardfluxshardflux.dev/#pricingshardflux.dev

Pricing

vCPU, per hour: InstaVM: $0.0504; Shardflux: $0.04
RAM, per GiB-hour: InstaVM: $0.0162; Shardflux: $0.015
Storage: InstaVM: $0.0002 per GiB-hour after 10 free GiB; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier: InstaVM: $50 credit; Shardflux: 30-day Pro trial, no card needed
Paid plan from: InstaVM: $100 / month; Shardflux: $9 / month
Billing: InstaVM: Per second; Shardflux: Active CPU time only

Limits

Max session: InstaVM: Not listed; Shardflux: Not listed
Idle stop: InstaVM: Not listed; Shardflux: Not listed
Largest sandbox: InstaVM: Not listed; Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes: InstaVM: Up to 100; Shardflux: Up to 200

Platform

Isolation: InstaVM: Firecracker microVM; Shardflux: Firecracker microVM
GPU: InstaVM: Not listed; Shardflux:
Snapshots: InstaVM:; Shardflux:
Pause and resume: InstaVM:; Shardflux:

Developer

SDKs: InstaVM: Python, TypeScript; Shardflux: TypeScript, Python
Integrations: InstaVM: Claude Code; Shardflux: Claude Code, MCP

Trust

License: InstaVM: Not listed; Shardflux: Not listed
BYOC: InstaVM: Not listed; Shardflux: Not listed

Hourly cost

One sandbox running for one hour

Size

InstaVM

Shardflux

1 vCPU · 2 GiB: InstaVM: $0.083; Shardflux: $0.070
2 vCPU · 4 GiB: InstaVM: $0.166; Shardflux: $0.140
4 vCPU · 8 GiB: InstaVM: $0.331; Shardflux: $0.280

Compute only, at list rates.

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Which one fits

Based on the fields above

InstaVM fits when

You need SOC 2 Type II.

Shardflux fits when

You need GPUs.
You use MCP.
You want the lower list price: $0.140 against $0.166 an hour for 2 vCPU and 4 GiB.
Your code waits a lot: CPU is billed only while it is in use.

More comparisons

See all comparisons

InstaVM

Shardflux

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

InstaVM fits when

Shardflux fits when

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