Blaxel vs Morph Morph is 52% cheaper per agent run

Which is better, Blaxel or Morph?

It depends on how your agent spends its time and how far you branch. For agents that mostly wait on a model, Runtime has the lowest cost: $0.64 for 1,000 one-minute runs, against $1.67 on Morph and $3.45 on Blaxel. Its pauses and forks keep memory, and there is no plan fee. Pick Blaxel for a resume under 25 ms or a fleet of over 100,000 sandboxes. Pick Morph to copy one running machine into hundreds of replicas, or for machines up to 64 vCPUs.

At a glance

Which one costs less when the sandbox sits idle?

Both are built to stop charging for compute between bursts of work, in different ways.

• Blaxel puts a sandbox on standby about 15 seconds after its last connection closes. Standby costs nothing for compute. It costs only snapshot storage at $0.20 per GB-month. Blaxel states a resume in under 25 ms.
• Morph bills a machine's MCUs for as long as it runs. Its Devboxes scale to zero when idle and keep their memory. Snapshot storage is billed from the same MCU balance: one MCU covers 5 TB snapshot-hours.

While active, Morph is the cheaper of the two for this size: $0.10 an hour for 2 MCUs, against $0.1656 for 4 GB on Blaxel. Blaxel gives no separate price for CPU, but it also gives no choice of it. A sandbox gets the cores its memory size carries.

Runtime pauses a sandbox after 300 seconds with nothing happening in it, or after the idlePauseSeconds you set, from 60 to 86,400. The pause keeps its memory and running processes. Paused storage is $0.08 per GB-month, under half of Blaxel's snapshot rate of $0.20.

Cost for the same job

1,000 runs of a 2 vCPU, 4 GiB sandbox (4 GB on Blaxel, which sets CPU from memory; 2 MCUs on Morph). Each run lasts 60 seconds and keeps the CPU busy for 20 CPU-seconds: an agent that mostly waits for a model.

At 100,000 runs a month, that is $345.00 on Blaxel, $166.67 on Morph and $63.89 on Runtime. With both CPUs busy for the whole minute, it is $1.33 on Runtime against $3.45 on Blaxel and $1.67 on Morph. Runtime is cheaper however busy the sandbox is. The Blaxel figure includes the 15 seconds or so each sandbox stays billed after its run, before standby. Plan fees, included credit, storage, network and taxes are left out.

Which one to pick

• Pick Blaxel if your sandboxes sit idle between short bursts and you want them back in milliseconds, or you plan a very large fleet. Its top tier runs over 100,000 sandboxes at the same time.
• Pick Morph for branching. Its Infinibranch copies a running machine, including its memory, into hundreds of parallel replicas. Its Free tier already allows machines up to 64 vCPUs and 256 GB of memory.
• Pick Runtime for a Firecracker microVM on every sandbox, at 62% less than Morph and 81% less than Blaxel. CPU and memory are chosen separately. Pauses and forks keep memory and processes, and there is no plan fee.

Switch from either one

Blaxel code runs on Runtime after one import: withruntime/blaxel in place of @blaxel/core, or withruntime.blaxel in place of blaxel.core in Python. Standby becomes a pause that the next call wakes from. Morph has no drop-in. Its calls map directly (map the calls). To pause when idle, as Blaxel and Morph Devboxes do:

TypeScriptimport { Sandbox } from "withruntime";const sbx = await Sandbox.create({ idlePauseSeconds: 600 }); // ten idle minutesawait sbx.exec("echo state > /workspace/state.txt");// The next exec or file call wakes it with its memory and processes.console.log((await sbx.exec("cat /workspace/state.txt")).stdout);await sbx.stop();

Pythonfrom withruntime import Sandboxsbx = Sandbox.create(idle_pause_seconds=600)sbx.exec("echo state > /workspace/state.txt")print(sbx.exec("cat /workspace/state.txt").stdout)sbx.stop()

Or give your coding agent the one instruction in migration. It switches the project on a branch, tests it on free usage, and reports the monthly saving. npx withruntime compare --from blaxel (or --from morph) prices what you ran at the old provider's rates. Credit you add within 30 days of signing up is matched, up to $1,000 in total. The full side-by-sides are Runtime vs Blaxel and Runtime vs Morph. For idle handling, see pause and resume a sandbox.

Sources

Morph rates checked 25 October 2026 and its pricing page reread 26 October 2026. Blaxel rates checked 25 October 2026, with its pricing page and sandbox documentation.

• Blaxel pricing, Blaxel sandboxes
• Morph Cloud pricing, Morph Devboxes
• Runtime pricing and JavaScript SDK

Facts on this page were checked on 26 October 2026.