Runtime

Morph vs Freestyle: branching VMs for agents

Morph and Freestyle both sell VMs that fork while running. Morph bills MCUs, Freestyle bills allocation: $1.67 against $2.25 for the 2 vCPU benchmark.

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.

Estimated compute cost

62% less than Morph72% less than Freestyle

2 vCPUs · 4 GiB · 60 s a run · 20 CPU-seconds busy

1,000

Compute only, at list rates checked 23 September 2026 and 25 September 2026 (Morph Cloud pricing, Freestyle pricing). Plan fees, network, taxes and free credits are left out. The worked example below shows the arithmetic.

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 10 running copies
Plan Free with no credit; Developer $40, Team $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, made for tree search over agent actions. Freestyle clones a running VM without pausing it. A Runtime fork pauses the source for about a second and gives up to ten running copies, memory and processes included, which covers trying a few approaches 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:

TextMorph      Size   1,000 × 60 s / 3,600 × 2 MCU × $0.05          = $1.67Freestyle  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           Total                                                  $2.25Runtime    CPU    1,000 × 20 s / 3,600 × $0.025                = $0.14           Memory 1,000 × 60 s / 3,600 × 4 × $0.0075           = $0.50           Total                                                  $0.64

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 ten copies suffice.

See Runtime vs Morph and Runtime vs Freestyle.

Sources

Morph rates checked 23 September 2026; Freestyle rates checked 25 September 2026.

Facts on this page were checked on 25 September 2026.