Fly.io Sprites vs Together Sandbox

Fly.io Sprites costs $0.0385 per vCPU-hour and Together Sandbox costs $0.0446 per vCPU-hour. Fly.io Sprites runs microVMs. Together Sandbox runs Firecracker 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

Together Sandbox

Isolated runtime environments for code from AI agents.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: Not listed

Visit site Together Sandbox profile

What is different

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

Field

Fly.io Sprites

Together Sandbox

vCPU, per hour: Fly.io Sprites: $0.0385; Together Sandbox: $0.0446
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Together Sandbox: $0.0149
Billing: Fly.io Sprites: Active CPU time only; Together Sandbox: Per second
Isolation: Fly.io Sprites: MicroVM; Together Sandbox: Firecracker microVM
SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Together Sandbox: Python, TypeScript

Full comparison

18 fields, at each provider's list price

Fly.io Spritesfly.io/pricing

Together Sandboxtogether.ai/pricingtogether.ai

Pricing

vCPU, per hour: Fly.io Sprites: $0.0385; Together Sandbox: $0.0446
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Together Sandbox: $0.0149
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Together Sandbox: Not listed
Free tier: Fly.io Sprites: $30 trial credit; Together Sandbox: Not listed
Paid plan from: Fly.io Sprites: Pay as you go; Together Sandbox: Not listed
Billing: Fly.io Sprites: Active CPU time only; Together Sandbox: Per second

Limits

Max session: Fly.io Sprites: Not listed; Together Sandbox: Not listed
Idle stop: Fly.io Sprites: Not listed; Together Sandbox: Not listed
Largest sandbox: Fly.io Sprites: Not listed; Together Sandbox: 16 vCPU · 128 GiB
Concurrent sandboxes: Fly.io Sprites: Not listed; Together Sandbox: Not listed

Platform

Isolation: Fly.io Sprites: MicroVM; Together Sandbox: Firecracker microVM
GPU: Fly.io Sprites: Not listed; Together Sandbox: Not listed
Snapshots: Fly.io Sprites:; Together Sandbox:
Pause and resume: Fly.io Sprites:; Together Sandbox:

Developer

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

Trust

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

Hourly cost

One sandbox running for one hour

Size

Fly.io Sprites

Together Sandbox

1 vCPU · 2 GiB: Fly.io Sprites: $0.082; Together Sandbox: $0.074
2 vCPU · 4 GiB: Fly.io Sprites: $0.165; Together Sandbox: $0.149
4 vCPU · 8 GiB: Fly.io Sprites: $0.329; Together Sandbox: $0.298

Compute only, at list rates.

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Which one fits

Based on the fields above

Fly.io Sprites fits when

You use MCP or the OpenAI Agents SDK.
Your code waits a lot: CPU is billed only while it is in use.

Together Sandbox fits when

You want the lower list price: $0.149 against $0.165 an hour for 2 vCPU and 4 GiB.

More comparisons

See all comparisons

Fly.io Sprites

Together Sandbox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

Together Sandbox fits when

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