boat vs Shardflux

boat costs $0.009 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. boat runs full VMs and has no session limit. Shardflux runs Firecracker microVMs and offers GPUs.

Updated Oct 15, 2026

boat

Persistent Ubuntu VMs with SSH, Docker and a desktop.

Isolation: Full VM
Free tier: Free trial with 25 hours
Max session: No limit

Visit site boat 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

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

Field

boat

Shardflux

vCPU, per hour: boat: $0.009; Shardflux: $0.04
RAM, per GiB-hour: boat: Included; Shardflux: $0.015
Storage: boat: Free; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier: boat: Free trial with 25 hours; Shardflux: 30-day Pro trial, no card needed
Paid plan from: boat: $20 / month; Shardflux: $9 / month
Billing: boat: Bundled machine time; Shardflux: Active CPU time only
Largest sandbox: boat: 16 vCPU · 32 GiB; Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes: boat: Up to 2,000; Shardflux: Up to 200
Isolation: boat: Full VM; Shardflux: Firecracker microVM
GPU: boat: No; Shardflux:
SDKs: boat: Python, JavaScript / TypeScript; Shardflux: TypeScript, Python
Integrations: boat: MCP, Claude Code; Shardflux: Claude Code, MCP

Full comparison

18 fields, at each provider's list price

boatdocs.boat.dev/pricingdocs.boat.dev

Shardfluxshardflux.dev/#pricingshardflux.dev

Pricing

vCPU, per hour: boat: $0.009; Shardflux: $0.04
RAM, per GiB-hour: boat: Included; Shardflux: $0.015
Storage: boat: Free; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier: boat: Free trial with 25 hours; Shardflux: 30-day Pro trial, no card needed
Paid plan from: boat: $20 / month; Shardflux: $9 / month
Billing: boat: Bundled machine time; Shardflux: Active CPU time only

Limits

Max session: boat: No limit; Shardflux: Not listed
Idle stop: boat: Not listed; Shardflux: Not listed
Largest sandbox: boat: 16 vCPU · 32 GiB; Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes: boat: Up to 2,000; Shardflux: Up to 200

Platform

Isolation: boat: Full VM; Shardflux: Firecracker microVM
GPU: boat: No; Shardflux:
Snapshots: boat:; Shardflux:
Pause and resume: boat:; Shardflux:

Developer

SDKs: boat: Python, JavaScript / TypeScript; Shardflux: TypeScript, Python
Integrations: boat: MCP, Claude Code; Shardflux: Claude Code, MCP

Trust

License: boat: Not listed; Shardflux: Not listed
BYOC: boat: Not listed; Shardflux: Not listed

Hourly cost

One sandbox running for one hour

Size

boat

Shardflux

1 vCPU · 2 GiB: boat: $0.009; Shardflux: $0.070
2 vCPU · 4 GiB: boat: $0.018; Shardflux: $0.140
4 vCPU · 8 GiB: boat: $0.036; Shardflux: $0.280

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

boat fits when

You want each sandbox to be a full VM.
You want the lower list price: $0.018 against $0.140 an hour for 2 vCPU and 4 GiB.

Shardflux fits when

You need GPUs.
You want each sandbox in its own microVM.
Your code waits a lot: CPU is billed only while it is in use.
You need a sandbox larger than 16 vCPU · 32 GiB.

More comparisons

See all comparisons

boat

Shardflux

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

boat fits when

Shardflux fits when

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