Agent Sandbox vs Fly.io Sprites

Fly.io Sprites costs $0.0385 per vCPU-hour. Agent Sandbox runs containers. Fly.io Sprites runs microVMs.

Updated Oct 14, 2026

Agent Sandbox

Hosted API that runs Python and shell code for AI agents.

Isolation: Container
Free tier: $10 credit with a Google sign-in
Max session: Not listed

Visit site Agent Sandbox profile

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

What is different

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

Field

Agent Sandbox

Fly.io Sprites

Storage: Agent Sandbox: $0.0005 per MB for output files; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Agent Sandbox: $10 credit with a Google sign-in; Fly.io Sprites: $30 trial credit
Billing: Agent Sandbox: Per second; Fly.io Sprites: Active CPU time only
Isolation: Agent Sandbox: Container; Fly.io Sprites: MicroVM
SDKs: Agent Sandbox: Python; Fly.io Sprites: Python, JavaScript / TypeScript, Go

Full comparison

18 fields, at each provider's list price

Agent Sandboxagentsandbox.co

Fly.io Spritesfly.io/pricing

Pricing

vCPU, per hour: Agent Sandbox: Not listed; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Agent Sandbox: Not listed; Fly.io Sprites: $0.021875
Storage: Agent Sandbox: $0.0005 per MB for output files; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Agent Sandbox: $10 credit with a Google sign-in; Fly.io Sprites: $30 trial credit
Paid plan from: Agent Sandbox: Pay as you go; Fly.io Sprites: Pay as you go
Billing: Agent Sandbox: Per second; Fly.io Sprites: Active CPU time only

Limits

Max session: Agent Sandbox: Not listed; Fly.io Sprites: Not listed
Idle stop: Agent Sandbox: After 5 minutes; Fly.io Sprites: Not listed
Largest sandbox: Agent Sandbox: Not listed; Fly.io Sprites: Not listed
Concurrent sandboxes: Agent Sandbox: Not listed; Fly.io Sprites: Not listed

Platform

Isolation: Agent Sandbox: Container; Fly.io Sprites: MicroVM
GPU: Agent Sandbox: Not listed; Fly.io Sprites: Not listed
Snapshots: Agent Sandbox: Not listed; Fly.io Sprites:
Pause and resume: Agent Sandbox: Not listed; Fly.io Sprites:

Developer

SDKs: Agent Sandbox: Python; Fly.io Sprites: Python, JavaScript / TypeScript, Go
Integrations: Agent Sandbox: Not listed; Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code

Trust

License: Agent Sandbox: Not listed; Fly.io Sprites: Not listed
BYOC: Agent Sandbox: Not listed; Fly.io Sprites: Not listed

Hourly cost

One sandbox running for one hour

Size

Agent Sandbox

Fly.io Sprites

1 vCPU · 2 GiB: Agent Sandbox: Not listed; Fly.io Sprites: $0.082
2 vCPU · 4 GiB: Agent Sandbox: Not listed; Fly.io Sprites: $0.165
4 vCPU · 8 GiB: Agent Sandbox: Not listed; Fly.io Sprites: $0.329

Compute only, at list rates.

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Which one fits

Based on the fields above

Fly.io Sprites fits when

You want each sandbox in its own microVM.
You use MCP, the OpenAI Agents SDK or Claude Code.
You want the larger free credit: $30 against $10.
You need snapshots.

More comparisons

See all comparisons

Agent Sandbox

Fly.io Sprites

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

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