boxes.dev vs Runtime

boxes.dev costs $0.15 per vCPU-hour and Runtime costs $0.025 per vCPU-hour. Runtime runs Firecracker microVMs and has no session limit.

Updated Oct 23, 2026

boxes.dev

Cloud computers for Claude Code and Codex.

Isolation: Not listed
Free tier: Trial, $0, 20 hours of compute included
Max session: Not listed

Visit site boxes.dev profile

Runtime

Firecracker microVM sandboxes for AI agents, billed on the CPU that code uses.

Isolation: Firecracker microVM
Free tier: 100 hours of a 1 GB machine in the first 30 days
Max session: No limit

Visit site Runtime profile

What is different

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

Field

boxes.dev

Runtime

vCPU, per hour: boxes.dev: $0.15; Runtime: $0.025
RAM, per GiB-hour: boxes.dev: Included; Runtime: $0.0075
Free tier: boxes.dev: Trial, $0, 20 hours of compute included; Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from: boxes.dev: $19 / month; Runtime: Pay as you go
Billing: boxes.dev: Bundled machine time; Runtime: Active CPU time only
Largest sandbox: boxes.dev: 8 vCPU · 32 GiB; Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes: boxes.dev: Up to 20; Runtime: Up to 200
Integrations: boxes.dev: Claude Code; Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Full comparison

18 fields, at each provider's list price

boxes.devboxes.dev/help/plans-and-box-hoursboxes.dev

Runtimewithruntime.com/pricingwithruntime.com

Pricing

vCPU, per hour: boxes.dev: $0.15; Runtime: $0.025
RAM, per GiB-hour: boxes.dev: Included; Runtime: $0.0075
Storage: boxes.dev: Not listed; Runtime: $0.000119 per GiB-hour after 10 free GiB
Free tier: boxes.dev: Trial, $0, 20 hours of compute included; Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from: boxes.dev: $19 / month; Runtime: Pay as you go
Billing: boxes.dev: Bundled machine time; Runtime: Active CPU time only

Limits

Max session: boxes.dev: Not listed; Runtime: No limit
Idle stop: boxes.dev: After 5 minutes; Runtime: After 5 minutes
Largest sandbox: boxes.dev: 8 vCPU · 32 GiB; Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes: boxes.dev: Up to 20; Runtime: Up to 200

Platform

Isolation: boxes.dev: Not listed; Runtime: Firecracker microVM
GPU: boxes.dev: Not listed; Runtime: No
Snapshots: boxes.dev:; Runtime:
Pause and resume: boxes.dev:; Runtime:

Developer

SDKs: boxes.dev: Not listed; Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations: boxes.dev: Claude Code; Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Trust

License: boxes.dev: Not listed; Runtime: Not listed
BYOC: boxes.dev: Teams plan; Runtime: Not listed

Hourly cost

One sandbox running for one hour

Size

boxes.dev

Runtime

1 vCPU · 2 GiB: boxes.dev: $0.150; Runtime: $0.040
2 vCPU · 4 GiB: boxes.dev: $0.300; Runtime: $0.080
4 vCPU · 8 GiB: boxes.dev: $0.600; Runtime: $0.160

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

boxes.dev fits when

You need the sandboxes in your own cloud account.

Runtime fits when

You want to pay only for usage, with no plan fee.
You use the OpenAI Agents SDK, the Vercel AI SDK, the Claude Agent SDK, LangChain or MCP.
You want the lower list price: $0.080 against $0.300 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.

More comparisons

See all comparisons

boxes.dev

Runtime

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

boxes.dev fits when

Runtime fits when

More comparisons

Related

Compare

Pricing

Browse