# Coreload vs Blacksmith
The section "What Blacksmith publishes" quotes Blacksmith's own pages, with a link to each page and the date we read it. The
other sections are ours. On Coreload you change a job's `runs-on` label, so you can move one job at a time and keep the
rest on Blacksmith.

## Measured

- At 2 vCPU, Blacksmith's single-thread speed was 0.63× Coreload's and its all-core speed per vCPU 0.87×, the median of 3 runs, measured 2026-11-04.
- Coreload's 2-vCPU runner exposed 3 vCPUs to the job, so these ratios compare per vCPU.
- Linux v6.12 kernel build, as shipped at 2 vCPU: Coreload took 1.31× as long as Blacksmith (498 s against 380 s), the median of 5 runs each, measured 2026-11-05.
- Linux v6.12 kernel build, one build per Coreload machine at 2 vCPU: Coreload 508 s, 1.34× Blacksmith's as shipped median of 380 s; Blacksmith was not run in this arm, so that ratio compares separate runs. The median of 5 runs, measured 2026-11-05.

The method, every run and the raw data are on the [benchmarks page](https://coreload.com/benchmarks/). Blacksmith was measured with our own Blacksmith account.

## Move a job

Install the GitHub App, then change the job's `runs-on` from its Blacksmith label to ours. The
[migration guide](https://coreload.com/migrate/blacksmith/) shows which Blacksmith sizes have a Coreload size today and which are
coming.

## Coreload's price

Per minute, for each size, from the same rates as the [pricing page](https://coreload.com/pricing/):

| `runs-on:` | Machine | Price |
| --- | --- | --- |
| `coreload-2` | 2 vCPU · 7 GiB | $0.00114 / min |
| `coreload-4` | 4 vCPU · 12 GiB | $0.00228 / min |
| `coreload-8` | 8 vCPU · 32 GiB | $0.00418 / min |
| `coreload-16` | coming | — |

**Billing starts when prepaid credit opens; until then nothing is charged.**

Each size's machine is on [Sizes](https://coreload.com/sizes/).

## What Blacksmith publishes

<!-- compare:begin -->
Quoted from Blacksmith's own pages, read 2026-11-03 (US Eastern), each with a link to its page. Where a page we read says nothing on a point, we say so.

| Machine | Rate ("/min") | Their words | Source |
| --- | --- | --- | --- |
| 2 vCPU · 8 GB | $0.004 | "blacksmith-2vcpu-ubuntu-2404 2 vCPU 8 GB 80 GB" · the pricing page shows "$0.004" | [blacksmith.sh](https://www.blacksmith.sh/pricing) · [docs.blacksmith.sh](https://docs.blacksmith.sh/blacksmith-runners/overview) |
| 4 vCPU · 16 GB | $0.008 | "blacksmith-4vcpu-ubuntu-2404 4 vCPU 16 GB 80 GB" · the pricing page shows "$0.008" | [blacksmith.sh](https://www.blacksmith.sh/pricing) · [docs.blacksmith.sh](https://docs.blacksmith.sh/blacksmith-runners/overview) |
| 8 vCPU · 32 GB | $0.016 | "blacksmith-8vcpu-ubuntu-2404 8 vCPU 32 GB 160 GB" · the pricing page shows "$0.016" | [blacksmith.sh](https://www.blacksmith.sh/pricing) · [docs.blacksmith.sh](https://docs.blacksmith.sh/blacksmith-runners/overview) |
| 16 vCPU · 64 GB | $0.032 | "blacksmith-16vcpu-ubuntu-2404 16 vCPU 64 GB 750 GB" · the pricing page shows "$0.032" | [blacksmith.sh](https://www.blacksmith.sh/pricing) · [docs.blacksmith.sh](https://docs.blacksmith.sh/blacksmith-runners/overview) |
| 32 vCPU · 128 GB | $0.064 | "blacksmith-32vcpu-ubuntu-2404 32 vCPU 128 GB 1.5 TB" · the pricing page shows "$0.064" | [blacksmith.sh](https://www.blacksmith.sh/pricing) · [docs.blacksmith.sh](https://docs.blacksmith.sh/blacksmith-runners/overview) |

The rate, in their words: "Ubuntu x64 $0.004 /min" (source: [blacksmith.sh](https://www.blacksmith.sh/pricing))

- **Plan fee:** Not stated on [this blacksmith.sh page](https://www.blacksmith.sh/pricing) when we read it.
<!-- compare:end -->

[Install the GitHub App](https://github.com/apps/coreload-ci/installations/new) · [All comparisons](https://coreload.com/compare/)