Fly.io Sprites vs Islo Sandboxes

Fly.io Sprites costs $0.0385 per vCPU-hour and Islo Sandboxes costs $0.07 per vCPU-hour. Fly.io Sprites runs microVMs. Islo Sandboxes runs microVMs.

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

Islo Sandboxes

Persistent microVM computers for coding agents.

Isolation: MicroVM
Free tier: Starting credit, no card required
Max session: Not listed

Visit site Islo Sandboxes profile

What is different

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

Field

Fly.io Sprites

Islo Sandboxes

vCPU, per hour: Fly.io Sprites: $0.0385; Islo Sandboxes: $0.07
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Islo Sandboxes: $0.04
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Islo Sandboxes: $0.0007 per GiB-hour
Free tier: Fly.io Sprites: $30 trial credit; Islo Sandboxes: Starting credit, no card required
Billing: Fly.io Sprites: Active CPU time only; Islo Sandboxes: Per second
SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Islo Sandboxes: Python, TypeScript, Go

Full comparison

18 fields, at each provider's list price

Fly.io Spritesfly.io/pricing

Islo Sandboxesislo.dev/pricing

Pricing

vCPU, per hour: Fly.io Sprites: $0.0385; Islo Sandboxes: $0.07
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Islo Sandboxes: $0.04
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Islo Sandboxes: $0.0007 per GiB-hour
Free tier: Fly.io Sprites: $30 trial credit; Islo Sandboxes: Starting credit, no card required
Paid plan from: Fly.io Sprites: Pay as you go; Islo Sandboxes: Pay as you go
Billing: Fly.io Sprites: Active CPU time only; Islo Sandboxes: Per second

Limits

Max session: Fly.io Sprites: Not listed; Islo Sandboxes: Not listed
Idle stop: Fly.io Sprites: Not listed; Islo Sandboxes: Not listed
Largest sandbox: Fly.io Sprites: Not listed; Islo Sandboxes: Not listed
Concurrent sandboxes: Fly.io Sprites: Not listed; Islo Sandboxes: Not listed

Platform

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

Developer

SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Islo Sandboxes: Python, TypeScript, Go
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK; Islo Sandboxes: Not listed

Trust

License: Fly.io Sprites: Not listed; Islo Sandboxes: Not listed
BYOC: Fly.io Sprites: Not listed; Islo Sandboxes: Agent computers run in your VPC.

Hourly cost

One sandbox running for one hour

Size

Fly.io Sprites

Islo Sandboxes

1 vCPU · 2 GiB: Fly.io Sprites: $0.082; Islo Sandboxes: $0.150
2 vCPU · 4 GiB: Fly.io Sprites: $0.165; Islo Sandboxes: $0.300
4 vCPU · 8 GiB: Fly.io Sprites: $0.329; Islo Sandboxes: $0.600

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Fly.io Sprites fits when

You use MCP or the OpenAI Agents SDK.
You want the lower list price: $0.165 against $0.300 an hour for 2 vCPU and 4 GiB.
Your code waits a lot: CPU is billed only while it is in use.

Islo Sandboxes fits when

You need the sandboxes in your own cloud account.

More comparisons

See all comparisons

Fly.io Sprites

Islo Sandboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

Islo Sandboxes fits when

More comparisons

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