Fly.io Sprites vs Namespace Devboxes

Fly.io Sprites costs $0.0385 per vCPU-hour and Namespace Devboxes costs $0.06 per vCPU-hour. Fly.io Sprites runs microVMs. Namespace Devboxes 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

Namespace Devboxes

Dev environments for AI coding agents.

Isolation: Full VM
Free tier: 30-day free trial
Max session: Not listed

Visit site Namespace Devboxes profile

What is different

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

Field

Fly.io Sprites

Namespace Devboxes

vCPU, per hour: Fly.io Sprites: $0.0385; Namespace Devboxes: $0.06
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Namespace Devboxes: Included
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Namespace Devboxes: $0.20 per GB-month for storage used
Free tier: Fly.io Sprites: $30 trial credit; Namespace Devboxes: 30-day free trial
Billing: Fly.io Sprites: Active CPU time only; Namespace Devboxes: Bundled machine time
Isolation: Fly.io Sprites: MicroVM; Namespace Devboxes: Full VM
SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Namespace Devboxes: TypeScript
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code; Namespace Devboxes: Claude Code

Full comparison

18 fields, at each provider's list price

Fly.io Spritesfly.io/pricing

Namespace Devboxesnamespace.so/pricingnamespace.so

Pricing

vCPU, per hour: Fly.io Sprites: $0.0385; Namespace Devboxes: $0.06
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Namespace Devboxes: Included
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Namespace Devboxes: $0.20 per GB-month for storage used
Free tier: Fly.io Sprites: $30 trial credit; Namespace Devboxes: 30-day free trial
Paid plan from: Fly.io Sprites: Pay as you go; Namespace Devboxes: Pay as you go
Billing: Fly.io Sprites: Active CPU time only; Namespace Devboxes: Bundled machine time

Limits

Max session: Fly.io Sprites: Not listed; Namespace Devboxes: Not listed
Idle stop: Fly.io Sprites: Not listed; Namespace Devboxes: After 15 minutes
Largest sandbox: Fly.io Sprites: Not listed; Namespace Devboxes: 32 vCPU · 64 GiB
Concurrent sandboxes: Fly.io Sprites: Not listed; Namespace Devboxes: Not listed

Platform

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

Developer

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

Trust

License: Fly.io Sprites: Not listed; Namespace Devboxes: Not listed
BYOC: Fly.io Sprites: Not listed; Namespace Devboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

Fly.io Sprites

Namespace Devboxes

1 vCPU · 2 GiB: Fly.io Sprites: $0.082; Namespace Devboxes: $0.060
2 vCPU · 4 GiB: Fly.io Sprites: $0.165; Namespace Devboxes: $0.120
4 vCPU · 8 GiB: Fly.io Sprites: $0.329; Namespace Devboxes: $0.240

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Fly.io Sprites fits when

You want each sandbox in its own microVM.
You use MCP or the OpenAI Agents SDK.
You need snapshots.
Your code waits a lot: CPU is billed only while it is in use.

Namespace Devboxes fits when

You want each sandbox to be a full VM.
You want the lower list price: $0.120 against $0.165 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.
You need SOC 2.

More comparisons

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Fly.io Sprites

Namespace Devboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

Namespace Devboxes fits when

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