Agent37 Cloud vs Fly.io Sprites

Agent37 Cloud costs $0.0011 per vCPU-hour and Fly.io Sprites costs $0.0385 per vCPU-hour. Agent37 Cloud runs gVisor and has no session limit. Fly.io Sprites runs microVMs.

Updated Oct 14, 2026

Agent37 Cloud

Persistent Linux sandboxes and VMs for code and agents.

Isolation: gVisor
Free tier: $5 starter credit, one time
Max session: No limit

Visit site Agent37 Cloud 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

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

Field

Agent37 Cloud

Fly.io Sprites

vCPU, per hour: Agent37 Cloud: $0.0011; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Agent37 Cloud: $0.00096; Fly.io Sprites: $0.021875
Storage: Agent37 Cloud: $0.00012 per GiB-hour; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Agent37 Cloud: $5 starter credit, one time; Fly.io Sprites: $30 trial credit
Billing: Agent37 Cloud: Per second; Fly.io Sprites: Active CPU time only
Isolation: Agent37 Cloud: gVisor; Fly.io Sprites: MicroVM
Integrations: Agent37 Cloud: Claude Code; Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code

Full comparison

18 fields, at each provider's list price

Agent37 Cloudagent37.com/pricingagent37.com

Fly.io Spritesfly.io/pricing

Pricing

vCPU, per hour: Agent37 Cloud: $0.0011; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Agent37 Cloud: $0.00096; Fly.io Sprites: $0.021875
Storage: Agent37 Cloud: $0.00012 per GiB-hour; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Agent37 Cloud: $5 starter credit, one time; Fly.io Sprites: $30 trial credit
Paid plan from: Agent37 Cloud: Pay as you go; Fly.io Sprites: Pay as you go
Billing: Agent37 Cloud: Per second; Fly.io Sprites: Active CPU time only

Limits

Max session: Agent37 Cloud: No limit; Fly.io Sprites: Not listed
Idle stop: Agent37 Cloud: Not listed; Fly.io Sprites: Not listed
Largest sandbox: Agent37 Cloud: 16 vCPU · 32 GiB; Fly.io Sprites: Not listed
Concurrent sandboxes: Agent37 Cloud: Not listed; Fly.io Sprites: Not listed

Platform

Isolation: Agent37 Cloud: gVisor; Fly.io Sprites: MicroVM
GPU: Agent37 Cloud: Not listed; Fly.io Sprites: Not listed
Snapshots: Agent37 Cloud: Not listed; Fly.io Sprites:
Pause and resume: Agent37 Cloud:; Fly.io Sprites:

Developer

SDKs: Agent37 Cloud: Not listed; Fly.io Sprites: Python, JavaScript / TypeScript, Go
Integrations: Agent37 Cloud: Claude Code; Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code

Trust

License: Agent37 Cloud: Not listed; Fly.io Sprites: Not listed
BYOC: Agent37 Cloud: Not listed; Fly.io Sprites: Not listed

Hourly cost

One sandbox running for one hour

Size

Agent37 Cloud

Fly.io Sprites

1 vCPU · 2 GiB: Agent37 Cloud: $0.003; Fly.io Sprites: $0.082
2 vCPU · 4 GiB: Agent37 Cloud: $0.006; Fly.io Sprites: $0.165
4 vCPU · 8 GiB: Agent37 Cloud: $0.012; Fly.io Sprites: $0.329

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Agent37 Cloud fits when

You want the lower list price: $0.006 against $0.165 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.
You need SOC 2.

Fly.io Sprites fits when

You want each sandbox in its own microVM.
You use MCP or the OpenAI Agents SDK.
You want the larger free credit: $30 against $5.
You need snapshots.

More comparisons

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Agent37 Cloud

Fly.io Sprites

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Agent37 Cloud fits when

Fly.io Sprites fits when

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