Fly.io Sprites vs Zipbox

Fly.io Sprites costs $0.0385 per vCPU-hour and Zipbox costs $0.00685 per vCPU-hour. Fly.io Sprites runs Firecracker microVMs. Zipbox runs Firecracker microVMs and has no session limit.

Updated Oct 23, 2026

Fly.io Sprites

Persistent Linux computers that sleep when idle.

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

Visit site Fly.io Sprites profile

Zipbox

Long-lived Firecracker microVMs for AI agents, each with its own desktop.

Isolation: Firecracker microVM
Free tier: $25 credit after a one-time $5 top-up
Max session: No limit

Visit site Zipbox profile

What is different

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

Field

Fly.io Sprites

Zipbox

vCPU, per hour: Fly.io Sprites: $0.0385; Zipbox: $0.00685
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Zipbox: Included
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Zipbox: Free
Free tier: Fly.io Sprites: $30 trial credit; Zipbox: $25 credit after a one-time $5 top-up
Billing: Fly.io Sprites: Active CPU time only; Zipbox: Bundled machine time
Snapshots: Fly.io Sprites:; Zipbox: No
Pause and resume: Fly.io Sprites:; Zipbox: No
SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Zipbox: TypeScript, Python, Go, Rust
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code; Zipbox: MCP, Claude Code, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK, LangChain

Full comparison

18 fields, at each provider's list price

Fly.io Spritesfly.io/pricing

Zipboxzipbox.ai/pricing

Pricing

vCPU, per hour: Fly.io Sprites: $0.0385; Zipbox: $0.00685
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Zipbox: Included
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Zipbox: Free
Free tier: Fly.io Sprites: $30 trial credit; Zipbox: $25 credit after a one-time $5 top-up
Paid plan from: Fly.io Sprites: Pay as you go; Zipbox: Pay as you go
Billing: Fly.io Sprites: Active CPU time only; Zipbox: Bundled machine time

Limits

Max session: Fly.io Sprites: Not listed; Zipbox: No limit
Idle stop: Fly.io Sprites: Not listed; Zipbox: Not listed
Largest sandbox: Fly.io Sprites: Not listed; Zipbox: 6 vCPU · 16 GiB
Concurrent sandboxes: Fly.io Sprites: Not listed; Zipbox: Not listed

Platform

Isolation: Fly.io Sprites: Firecracker microVM; Zipbox: Firecracker microVM
GPU: Fly.io Sprites: Not listed; Zipbox: Not listed
Snapshots: Fly.io Sprites:; Zipbox: No
Pause and resume: Fly.io Sprites:; Zipbox: No

Developer

SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Zipbox: TypeScript, Python, Go, Rust
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code; Zipbox: MCP, Claude Code, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK, LangChain

Trust

License: Fly.io Sprites: Not listed; Zipbox: Not listed
BYOC: Fly.io Sprites: Not listed; Zipbox: Not listed

Hourly cost

One sandbox running for one hour

Size

Fly.io Sprites

Zipbox

1 vCPU · 2 GiB: Fly.io Sprites: $0.082; Zipbox: $0.007
2 vCPU · 4 GiB: Fly.io Sprites: $0.165; Zipbox: $0.014
4 vCPU · 8 GiB: Fly.io Sprites: $0.329; Zipbox: $0.027

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Fly.io Sprites fits when

You want the larger free credit: $30 against $25.
You need snapshots.
You need pause and resume.
Your code waits a lot: CPU is billed only while it is in use.

Zipbox fits when

You use the Claude Agent SDK, the Vercel AI SDK or LangChain.
You want the lower list price: $0.014 against $0.165 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.

More comparisons

See all comparisons

Fly.io Sprites

Zipbox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

Zipbox fits when

More comparisons

Related

Compare

Pricing

Browse