Cua Fleets vs Mosaic Sandbox

Cua Fleets costs $0.044625 per vCPU-hour and Mosaic Sandbox costs $0.025 per vCPU-hour. Cua Fleets runs gVisor. Mosaic Sandbox runs Firecracker microVMs.

Updated Oct 14, 2026

Cua Fleets

Hosted Linux and Windows sandboxes for computer-use agents.

Isolation: gVisor
Free tier: Not listed
Max session: Not listed

Visit site Cua Fleets profile

Mosaic Sandbox

Linux microVM sandboxes for coding agents.

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

Visit site Mosaic Sandbox profile

What is different

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

Field

Cua Fleets

Mosaic Sandbox

vCPU, per hour: Cua Fleets: $0.044625; Mosaic Sandbox: $0.025
RAM, per GiB-hour: Cua Fleets: $0.0223125; Mosaic Sandbox: Included
Billing: Cua Fleets: Per second; Mosaic Sandbox: Bundled machine time
Largest sandbox: Cua Fleets: 8 vCPU · 32 GiB; Mosaic Sandbox: 16 vCPU · 32 GiB
Isolation: Cua Fleets: gVisor; Mosaic Sandbox: Firecracker microVM
Pause and resume: Cua Fleets: No; Mosaic Sandbox:
SDKs: Cua Fleets: Python, TypeScript, Rust; Mosaic Sandbox: Python, TypeScript, Go
Integrations: Cua Fleets: OpenAI Agents SDK, MCP; Mosaic Sandbox: LangChain, MCP

Full comparison

18 fields, at each provider's list price

Cua Fleetscua.ai/#pricing

Mosaic Sandboxsandbox.mosaicos.com/pricingsandbox.mosaicos.com

Pricing

vCPU, per hour: Cua Fleets: $0.044625; Mosaic Sandbox: $0.025
RAM, per GiB-hour: Cua Fleets: $0.0223125; Mosaic Sandbox: Included
Storage: Cua Fleets: Free; Mosaic Sandbox: Free
Free tier: Cua Fleets: Not listed; Mosaic Sandbox: Not listed
Paid plan from: Cua Fleets: Not listed; Mosaic Sandbox: Pay as you go
Billing: Cua Fleets: Per second; Mosaic Sandbox: Bundled machine time

Limits

Max session: Cua Fleets: Not listed; Mosaic Sandbox: Not listed
Idle stop: Cua Fleets: Not listed; Mosaic Sandbox: Not listed
Largest sandbox: Cua Fleets: 8 vCPU · 32 GiB; Mosaic Sandbox: 16 vCPU · 32 GiB
Concurrent sandboxes: Cua Fleets: Not listed; Mosaic Sandbox: Up to 200

Platform

Isolation: Cua Fleets: gVisor; Mosaic Sandbox: Firecracker microVM
GPU: Cua Fleets: Not listed; Mosaic Sandbox: Not listed
Snapshots: Cua Fleets: Not listed; Mosaic Sandbox:
Pause and resume: Cua Fleets: No; Mosaic Sandbox:

Developer

SDKs: Cua Fleets: Python, TypeScript, Rust; Mosaic Sandbox: Python, TypeScript, Go
Integrations: Cua Fleets: OpenAI Agents SDK, MCP; Mosaic Sandbox: LangChain, MCP

Trust

License: Cua Fleets: Not listed; Mosaic Sandbox: Not listed
BYOC: Cua Fleets: Your AWS, Google Cloud, or Modal account; Mosaic Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Size

Cua Fleets

Mosaic Sandbox

1 vCPU · 2 GiB: Cua Fleets: $0.089; Mosaic Sandbox: $0.025
2 vCPU · 4 GiB: Cua Fleets: $0.179; Mosaic Sandbox: $0.050
4 vCPU · 8 GiB: Cua Fleets: $0.357; Mosaic Sandbox: $0.100

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Cua Fleets fits when

You use the OpenAI Agents SDK.
You need a desktop in the sandbox.
You need the sandboxes in your own cloud account.
You need SOC 2.

Mosaic Sandbox fits when

You want each sandbox in its own microVM.
You use LangChain.
You want the lower list price: $0.050 against $0.179 an hour for 2 vCPU and 4 GiB.
You need snapshots.

More comparisons

See all comparisons

Cua Fleets

Mosaic Sandbox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Cua Fleets fits when

Mosaic Sandbox fits when

More comparisons

Related

Compare

Pricing

Browse