Modal vs Phonebox

Modal costs $0.070956 per vCPU-hour. Modal runs gVisor, offers GPUs and limits a session to 24 hours. Phonebox limits a session to 3 hours.

Updated Oct 15, 2026

Modal

Serverless compute with sandboxes and GPUs.

Isolation: gVisor
Free tier: $30 credit every month
Max session: 24 hours

Visit site Modal profile

Phonebox

Cloud Android phones that AI agents control through their screens.

Isolation: Not listed
Free tier: $2 starter credit, one time, no card
Max session: 3 hours

Visit site Phonebox profile

What is different

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

Field

Modal

Phonebox

Free tier: Modal: $30 credit every month; Phonebox: $2 starter credit, one time, no card
Billing: Modal: Per second; Phonebox: Bundled machine time
Max session: Modal: 24 hours; Phonebox: 3 hours
SDKs: Modal: Python, JavaScript / TypeScript, Go; Phonebox: TypeScript
Integrations: Modal: Claude Agent SDK, Claude Code; Phonebox: MCP

Full comparison

18 fields, at each provider's list price

Modalmodal.com/pricing

Phoneboxphonebox.dev/pricingphonebox.dev

Pricing

vCPU, per hour: Modal: $0.070956; Phonebox: Not listed
RAM, per GiB-hour: Modal: $0.024012; Phonebox: Not listed
Storage: Modal: Not listed; Phonebox: Not listed
Free tier: Modal: $30 credit every month; Phonebox: $2 starter credit, one time, no card
Paid plan from: Modal: Pay as you go; Phonebox: Pay as you go
Billing: Modal: Per second; Phonebox: Bundled machine time

Limits

Max session: Modal: 24 hours; Phonebox: 3 hours
Idle stop: Modal: Not listed; Phonebox: After 5 minutes
Largest sandbox: Modal: Not listed; Phonebox: Not listed
Concurrent sandboxes: Modal: Not listed; Phonebox: Up to 5

Platform

Isolation: Modal: gVisor; Phonebox: Not listed
GPU: Modal:; Phonebox: Not listed
Snapshots: Modal:; Phonebox: Not listed
Pause and resume: Modal: Not listed; Phonebox:

Developer

SDKs: Modal: Python, JavaScript / TypeScript, Go; Phonebox: TypeScript
Integrations: Modal: Claude Agent SDK, Claude Code; Phonebox: MCP

Trust

License: Modal: Not listed; Phonebox: Not listed
BYOC: Modal: Not listed; Phonebox: Not listed

Hourly cost

One sandbox running for one hour

Size

Modal

Phonebox

1 vCPU · 2 GiB: Modal: $0.119; Phonebox: Not listed
2 vCPU · 4 GiB: Modal: $0.238; Phonebox: Not listed
4 vCPU · 8 GiB: Modal: $0.476; Phonebox: Not listed

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Modal fits when

You need GPUs.
A session must run longer than 3 hours.
You use the Claude Agent SDK or Claude Code.
You want the larger free credit: $30 against $2.

Phonebox fits when

You use MCP.
You need pause and resume.

More comparisons

See all comparisons

Modal

Phonebox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Modal fits when

Phonebox fits when

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