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Runtime

Morph vs Freestyle branching VMs for agents

Runtime Cloud (withruntime.com) runs the job for 62% less than either. Both rivals fork running VMs.

Estimated compute cost2 vCPUs · 4 GiB · 60 s a run · 20 CPU-seconds busy

62% less than Morph72% less than Freestyle

1,000

Compute only, at list rates checked 25 October 2026 (Morph Cloud pricing, Freestyle pricing). Plan fees, network, taxes and free credits are left out. The worked example below shows the arithmetic.

Which is better, Morph or Freestyle?

It depends on how you fork. For agents that wait on a model, Runtime bills measured CPU. The 2 vCPU benchmark costs $0.64 there, against $1.67 on Morph and $2.25 on Freestyle. Its forks make up to 100 copies, with memory kept. Pick Morph to branch one machine into hundreds of replicas. Pick Freestyle if a fork must never pause the source VM.

At a glance

Morph Freestyle Runtime
Isolation Full virtual machines Full Linux virtual machines Firecracker microVM, own kernel
Price $0.05 per MCU-hour: 1 vCPU, 4 GB or 16 GB of disk $0.04032 per vCPU-hour, $0.0129 per GiB-hour Measured CPU and reserved memory
Forks Infinibranch, to hundreds of replicas Live forks without pausing Up to 100 running copies
Plan Developer free with no credit; Team $40, Scale $250 a month Free, Hobby $50, Pro $500 a month None; prepaid credit from $10

Forks at different scales

Morph's Infinibranch turns one running machine into hundreds of replicas. It is made for tree search over agent actions. Freestyle clones a running VM without pausing it. A Runtime fork pauses the source for the capture, wakes it before it returns, and creates up to 100 running copies. The copies have memory and processes, and they start from one warmed-up state.

Cost for the same job

2 vCPU and 4 GB (2 MCUs on Morph), 60 seconds, 20 CPU-seconds, 1,000 runs, with Freestyle's 32 GiB disk:

Morph$1.67
Size
1,000 × 60 s / 3,600 × 2 MCU × $0.05
$1.67
Freestyle$2.25
CPU
1,000 × 60 s / 3,600 × 2 × $0.04032
$1.34
Memory
1,000 × 60 s / 3,600 × 4 × $0.0129
$0.86
Disk
1,000 × 60 s / 3,600 × 32 × $0.000086
$0.05
Runtime$0.64
CPU
1,000 × 20 s / 3,600 × $0.025
$0.14
Memory
1,000 × 60 s / 3,600 × 4 × $0.0075
$0.50

With both CPUs busy for the whole minute, the job costs $1.67 on Morph, $2.25 on Freestyle, and $1.33 on Runtime.

Which one to pick

  • Morph for branching into hundreds of replicas.
  • Freestyle for forks that never pause the source.
  • Runtime for the lowest bill, with forks when 100 copies are enough.

See Runtime vs Morph and Runtime vs Freestyle.

Runtime Cloud

Runtime costs 62% less than Morph and 72% less than Freestyle for an agent that waits. On 1,000 one-minute runs of a 2 vCPU, 4 GiB sandbox with 20 CPU-seconds of work each, Morph costs $1.67, Freestyle $2.25, and Runtime $0.64.

You can start on the free usage after npx withruntime login. The migration guide covers moving from Morph or Freestyle.

Sources

Morph rates were checked 25 October 2026. Freestyle rates were checked 25 October 2026.

Facts on this page were checked on 26 October 2026.

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