HopX vs Runtime

HopX costs $0.0504 per vCPU-hour and Runtime costs $0.025 per vCPU-hour. HopX runs Firecracker microVMs and has no session limit. Runtime runs Firecracker microVMs and has no session limit.

Updated Oct 23, 2026

HopX

Firecracker microVM sandboxes for AI agents.

Isolation: Firecracker microVM
Free tier: $200 credit
Max session: No limit

Visit site HopX 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

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

Field

HopX

Runtime

vCPU, per hour: HopX: $0.0504; Runtime: $0.025
RAM, per GiB-hour: HopX: $0.0162; Runtime: $0.0075
Storage: HopX: $0.000108 per GiB-hour; Runtime: $0.000119 per GiB-hour after 10 free GiB
Free tier: HopX: $200 credit; Runtime: 100 hours of a 1 GB machine in the first 30 days
Billing: HopX: Per second; Runtime: Active CPU time only
SDKs: HopX: Python, JavaScript; Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations: HopX: MCP; Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Full comparison

18 fields, at each provider's list price

HopXhopx.ai/pricing

Runtimewithruntime.com/pricingwithruntime.com

Pricing

vCPU, per hour: HopX: $0.0504; Runtime: $0.025
RAM, per GiB-hour: HopX: $0.0162; Runtime: $0.0075
Storage: HopX: $0.000108 per GiB-hour; Runtime: $0.000119 per GiB-hour after 10 free GiB
Free tier: HopX: $200 credit; Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from: HopX: Pay as you go; Runtime: Pay as you go
Billing: HopX: Per second; Runtime: Active CPU time only

Limits

Max session: HopX: No limit; Runtime: No limit
Idle stop: HopX: Not listed; Runtime: After 5 minutes
Largest sandbox: HopX: Not listed; Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes: HopX: Not listed; Runtime: Up to 200

Platform

Isolation: HopX: Firecracker microVM; Runtime: Firecracker microVM
GPU: HopX: Not listed; Runtime: No
Snapshots: HopX:; Runtime:
Pause and resume: HopX:; Runtime:

Developer

SDKs: HopX: Python, JavaScript; Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations: HopX: MCP; Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Trust

License: HopX: Not listed; Runtime: Not listed
BYOC: HopX: Not listed; Runtime: Not listed

Hourly cost

One sandbox running for one hour

Size

HopX

Runtime

1 vCPU · 2 GiB: HopX: $0.083; Runtime: $0.040
2 vCPU · 4 GiB: HopX: $0.166; Runtime: $0.080
4 vCPU · 8 GiB: HopX: $0.331; Runtime: $0.160

Compute only, at list rates.

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Which one fits

Based on the fields above

HopX fits when

You need SOC 2 and ISO 27001.

Runtime fits when

You use the OpenAI Agents SDK, the Vercel AI SDK, the Claude Agent SDK, LangChain or Claude Code.
You want the lower list price: $0.080 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.

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HopX

Runtime

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

HopX fits when

Runtime fits when

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