Declaw vs Fly.io Sprites

Declaw costs $0.0504 per vCPU-hour and Fly.io Sprites costs $0.0385 per vCPU-hour. Declaw runs Firecracker microVMs and limits a session to 72 hours. Fly.io Sprites runs microVMs.

Updated Oct 14, 2026

Declaw

Firecracker microVM sandboxes for AI agents.

Isolation: Firecracker microVM
Free tier: $100 sandbox credit, one time
Max session: 72 hours

Visit site Declaw 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

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

Field

Declaw

Fly.io Sprites

vCPU, per hour: Declaw: $0.0504; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Declaw: $0.0162; Fly.io Sprites: $0.021875
Storage: Declaw: $0.00015264 per GiB-hour; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Declaw: $100 sandbox credit, one time; Fly.io Sprites: $30 trial credit
Billing: Declaw: Per second; Fly.io Sprites: Active CPU time only
Isolation: Declaw: Firecracker microVM; Fly.io Sprites: MicroVM
SDKs: Declaw: Python, TypeScript, Go; Fly.io Sprites: Python, JavaScript / TypeScript, Go
Integrations: Declaw: LangChain, OpenAI Agents SDK, MCP; Fly.io Sprites: MCP, OpenAI Agents SDK

Full comparison

18 fields, at each provider's list price

Declawdocs.declaw.ai/platform/billingdocs.declaw.ai

Fly.io Spritesfly.io/pricing

Pricing

vCPU, per hour: Declaw: $0.0504; Fly.io Sprites: $0.0385
RAM, per GiB-hour: Declaw: $0.0162; Fly.io Sprites: $0.021875
Storage: Declaw: $0.00015264 per GiB-hour; Fly.io Sprites: $0.000683 per GiB-hour
Free tier: Declaw: $100 sandbox credit, one time; Fly.io Sprites: $30 trial credit
Paid plan from: Declaw: Pay as you go; Fly.io Sprites: Pay as you go
Billing: Declaw: Per second; Fly.io Sprites: Active CPU time only

Limits

Max session: Declaw: 72 hours; Fly.io Sprites: Not listed
Idle stop: Declaw: Not listed; Fly.io Sprites: Not listed
Largest sandbox: Declaw: 16 vCPU · 16 GiB; Fly.io Sprites: Not listed
Concurrent sandboxes: Declaw: Up to 500; Fly.io Sprites: Not listed

Platform

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

Developer

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

Trust

License: Declaw: Not listed; Fly.io Sprites: Not listed
BYOC: Declaw: Deploy in your VPC. Book a call.; Fly.io Sprites: Not listed

Hourly cost

One sandbox running for one hour

Size

Declaw

Fly.io Sprites

1 vCPU · 2 GiB: Declaw: $0.083; Fly.io Sprites: $0.082
2 vCPU · 4 GiB: Declaw: $0.166; Fly.io Sprites: $0.165
4 vCPU · 8 GiB: Declaw: $0.331; Fly.io Sprites: $0.329

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Declaw fits when

You use LangChain.
You want the larger free credit: $100 against $30.
You need the sandboxes in your own cloud account.

Fly.io Sprites fits when

You want the lower list price: $0.165 against $0.166 an hour for 2 vCPU and 4 GiB.
Your code waits a lot: CPU is billed only while it is in use.

More comparisons

See all comparisons

Declaw

Fly.io Sprites

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Declaw fits when

Fly.io Sprites fits when

More comparisons

Related

Compare

Pricing

Browse