Fly.io Sprites vs Isorun

Fly.io Sprites costs $0.0385 per vCPU-hour and Isorun costs $0.025 per vCPU-hour. Fly.io Sprites runs microVMs. Isorun runs 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

Isorun

Isolated Linux microVMs from any Docker image.

Isolation: MicroVM
Free tier: $50 credit
Max session: Not listed

Visit site Isorun profile

What is different

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

Field

Fly.io Sprites

Isorun

vCPU, per hour: Fly.io Sprites: $0.0385; Isorun: $0.025
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Isorun: $0.015
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Isorun: Persistent disk $0.02 per GB-month for data stored
Free tier: Fly.io Sprites: $30 trial credit; Isorun: $50 credit
Billing: Fly.io Sprites: Active CPU time only; Isorun: Per second
SDKs: Fly.io Sprites: Python, JavaScript / TypeScript, Go; Isorun: TypeScript
Integrations: Fly.io Sprites: MCP, OpenAI Agents SDK, Claude Code; Isorun: LangChain, OpenAI Agents SDK, MCP

Full comparison

18 fields, at each provider's list price

Fly.io Spritesfly.io/pricing

Isorundocs.isorun.ai/getting-started/pricingdocs.isorun.ai

Pricing

vCPU, per hour: Fly.io Sprites: $0.0385; Isorun: $0.025
RAM, per GiB-hour: Fly.io Sprites: $0.021875; Isorun: $0.015
Storage: Fly.io Sprites: $0.000683 per GiB-hour; Isorun: Persistent disk $0.02 per GB-month for data stored
Free tier: Fly.io Sprites: $30 trial credit; Isorun: $50 credit
Paid plan from: Fly.io Sprites: Pay as you go; Isorun: Pay as you go
Billing: Fly.io Sprites: Active CPU time only; Isorun: Per second

Limits

Max session: Fly.io Sprites: Not listed; Isorun: Not listed
Idle stop: Fly.io Sprites: Not listed; Isorun: Not listed
Largest sandbox: Fly.io Sprites: Not listed; Isorun: Not listed
Concurrent sandboxes: Fly.io Sprites: Not listed; Isorun: Not listed

Platform

Isolation: Fly.io Sprites: MicroVM; Isorun: MicroVM
GPU: Fly.io Sprites: Not listed; Isorun: Not listed
Snapshots: Fly.io Sprites:; Isorun:
Pause and resume: Fly.io Sprites:; Isorun:

Developer

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

Trust

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

Hourly cost

One sandbox running for one hour

Size

Fly.io Sprites

Isorun

1 vCPU · 2 GiB: Fly.io Sprites: $0.082; Isorun: $0.055
2 vCPU · 4 GiB: Fly.io Sprites: $0.165; Isorun: $0.110
4 vCPU · 8 GiB: Fly.io Sprites: $0.329; Isorun: $0.220

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Fly.io Sprites fits when

You use Claude Code.
Your code waits a lot: CPU is billed only while it is in use.

Isorun fits when

You use LangChain.
You want the lower list price: $0.110 against $0.165 an hour for 2 vCPU and 4 GiB.
You want the larger free credit: $50 against $30.
You need a desktop in the sandbox.

More comparisons

See all comparisons

Fly.io Sprites

Isorun

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Fly.io Sprites fits when

Isorun fits when

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