Celesto Cloud vs Modal

Celesto Cloud costs $0.015 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. Celesto Cloud runs microVMs. Modal runs gVisor, offers GPUs and limits a session to 24 hours.

Updated Oct 14, 2026

Celesto Cloud

Cloud computers for AI agents, each in a microVM.

Isolation: MicroVM
Free tier: $5 runtime credit, one time, 30 days
Max session: Not listed

Visit site Celesto Cloud profile

Modal

Serverless compute with sandboxes and GPUs.

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

Visit site Modal profile

What is different

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

Field

Celesto Cloud

Modal

vCPU, per hour: Celesto Cloud: $0.015; Modal: $0.070956
RAM, per GiB-hour: Celesto Cloud: Included; Modal: $0.024012
Free tier: Celesto Cloud: $5 runtime credit, one time, 30 days; Modal: $30 credit every month
Billing: Celesto Cloud: Bundled machine time; Modal: Per second
Isolation: Celesto Cloud: MicroVM; Modal: gVisor
SDKs: Celesto Cloud: Python, JavaScript / TypeScript; Modal: Python, JavaScript / TypeScript, Go
Integrations: Celesto Cloud: MCP, OpenAI Agents SDK; Modal: Claude Agent SDK

Full comparison

18 fields, at each provider's list price

Celesto Cloudcelesto.ai/pricing

Modalmodal.com/pricing

Pricing

vCPU, per hour: Celesto Cloud: $0.015; Modal: $0.070956
RAM, per GiB-hour: Celesto Cloud: Included; Modal: $0.024012
Storage: Celesto Cloud: Free; Modal: Not listed
Free tier: Celesto Cloud: $5 runtime credit, one time, 30 days; Modal: $30 credit every month
Paid plan from: Celesto Cloud: Pay as you go; Modal: Pay as you go
Billing: Celesto Cloud: Bundled machine time; Modal: Per second

Limits

Max session: Celesto Cloud: Not listed; Modal: 24 hours
Idle stop: Celesto Cloud: Not listed; Modal: Not listed
Largest sandbox: Celesto Cloud: 8 vCPU · 32 GiB; Modal: Not listed
Concurrent sandboxes: Celesto Cloud: Up to 10; Modal: Not listed

Platform

Isolation: Celesto Cloud: MicroVM; Modal: gVisor
GPU: Celesto Cloud: Not listed; Modal:
Snapshots: Celesto Cloud:; Modal:
Pause and resume: Celesto Cloud:; Modal: Not listed

Developer

SDKs: Celesto Cloud: Python, JavaScript / TypeScript; Modal: Python, JavaScript / TypeScript, Go
Integrations: Celesto Cloud: MCP, OpenAI Agents SDK; Modal: Claude Agent SDK

Trust

License: Celesto Cloud: Apache-2.0; Modal: Not listed
BYOC: Celesto Cloud: Not listed; Modal: Not listed

Hourly cost

One sandbox running for one hour

Size

Celesto Cloud

Modal

1 vCPU · 2 GiB: Celesto Cloud: $0.015; Modal: $0.119
2 vCPU · 4 GiB: Celesto Cloud: $0.030; Modal: $0.238
4 vCPU · 8 GiB: Celesto Cloud: $0.060; Modal: $0.476

Compute only, at list rates.

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Which one fits

Based on the fields above

Celesto Cloud fits when

You want each sandbox in its own microVM.
You want an open-source platform (Apache-2.0).
You use MCP or the OpenAI Agents SDK.
You want the lower list price: $0.030 against $0.238 an hour for 2 vCPU and 4 GiB.

Modal fits when

You need GPUs.
You use the Claude Agent SDK.
You want the larger free credit: $30 against $5.
You need SOC 2 Type II, HIPAA and GDPR.

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Celesto Cloud

Modal

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Celesto Cloud fits when

Modal fits when

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