Fly.io Sprites vs Railway Sandboxes

Fly.io Sprites costs $0.0385 per vCPU-hour and Railway Sandboxes costs $0.069444 per vCPU-hour. Fly.io Sprites runs microVMs. Railway Sandboxes runs full VMs.

Updated Oct 14, 2026

Fly.io Sprites

Persistent Linux computers that sleep when idle.

Isolation: MicroVM
Free tier: $30 trial credit
Max session: Not listed

Visit site Fly.io Sprites profile

Railway Sandboxes

Isolated Linux VMs you create on demand and destroy.

Isolation: Full VM
Free tier: $5 trial credit for 30 days
Max session: Not listed

Visit site Railway Sandboxes profile

What is different

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

Field

Fly.io Sprites

Railway Sandboxes

vCPU, per hour: Fly.io Sprites: $0.0385; Railway Sandboxes: $0.069444
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Railway Sandboxes: $0.069444
Free tier: Fly.io Sprites: $30 trial credit; Railway Sandboxes: $5 trial credit for 30 days
Paid plan from: Fly.io Sprites: Pay as you go; Railway Sandboxes: $5 / month
Isolation: Fly.io Sprites: MicroVM; Railway Sandboxes: Full VM
SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Railway Sandboxes: TypeScript
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code; Railway Sandboxes: Claude Code

Full comparison

18 fields, at each provider's list price

Fly.io Spritesfly.io/pricing

Railway Sandboxesrailway.com/pricingrailway.com

Pricing

vCPU, per hour: Fly.io Sprites: $0.0385; Railway Sandboxes: $0.069444
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Railway Sandboxes: $0.069444
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Railway Sandboxes: Not listed
Free tier: Fly.io Sprites: $30 trial credit; Railway Sandboxes: $5 trial credit for 30 days
Paid plan from: Fly.io Sprites: Pay as you go; Railway Sandboxes: $5 / month
Billing: Fly.io Sprites: Active CPU time only; Railway Sandboxes: Active CPU time only

Limits

Max session: Fly.io Sprites: Not listed; Railway Sandboxes: Not listed
Idle stop: Fly.io Sprites: Not listed; Railway Sandboxes: After 30 minutes
Largest sandbox: Fly.io Sprites: Not listed; Railway Sandboxes: 32 vCPU · 32 GiB
Concurrent sandboxes: Fly.io Sprites: Not listed; Railway Sandboxes: Up to 100

Platform

Isolation: Fly.io Sprites: MicroVM; Railway Sandboxes: Full VM
GPU: Fly.io Sprites: Not listed; Railway Sandboxes: Not listed
Snapshots: Fly.io Sprites:; Railway Sandboxes:
Pause and resume: Fly.io Sprites:; Railway Sandboxes: Not listed

Developer

SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Railway Sandboxes: TypeScript
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code; Railway Sandboxes: Claude Code

Trust

License: Fly.io Sprites: Not listed; Railway Sandboxes: Not listed
BYOC: Fly.io Sprites: Not listed; Railway Sandboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

Fly.io Sprites

Railway Sandboxes

1 vCPU · 2 GiB: Fly.io Sprites: $0.082; Railway Sandboxes: $0.208
2 vCPU · 4 GiB: Fly.io Sprites: $0.165; Railway Sandboxes: $0.417
4 vCPU · 8 GiB: Fly.io Sprites: $0.329; Railway Sandboxes: $0.833

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Fly.io Sprites fits when

You want to pay only for usage, with no plan fee.
You want each sandbox in its own microVM.
You use MCP or the OpenAI Agents SDK.
You want the lower list price: $0.165 against $0.417 an hour for 2 vCPU and 4 GiB.

Railway Sandboxes fits when

You want each sandbox to be a full VM.

More comparisons

See all comparisons

Fly.io Sprites

Railway Sandboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

Railway Sandboxes fits when

More comparisons

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