GitHub Actions vs Buildkite
A comparison of GitHub Actions and Buildkite built from values read directly from each provider's own documentation, with the source recorded against every figure.
The short answer
- Pick GitHub Actions if
- Repos already on GitHub — no separate CI product to wire up, and self-hosted runners cost nothing to use beyond the hardware itself.
- Pick Buildkite if
- Teams that already run their own compute and want a CI product built around that from the start, rather than one that treats self-hosting as an escape hatch from a hosted-minutes model.
2 sourced criteria separate them:
- Pricing model
- GitHub Actions: Per-minute billing beyond the included allowance: $0.006/minute (Linux), $0.010/minute (Windows), $0.062/minute (macOS). Artifact storage overage $0.25/GB-month; cache storage overage $0.07/GB-month.
- Buildkite: Hybrid: per-user subscription plus consumption-based pricing for hosted agents, billed per vCPU-minute metered to the second, with no minimums and no rounding.
- Self-hosted runners
- GitHub Actions: Free for self-hosted runners — no usage charges beyond the runner's own infrastructure cost.
- Buildkite: Self-hosted agents are the default model, not an add-on. Free plan includes up to 10 concurrent jobs; Pro plan includes 10 self-hosted agents.
Pick the criteria you care about. The chart counts how many of them lean toward each provider — the same read as scanning the bars below, just totalled for the ones you chose.
GitHub Actions 0
Buildkite 0
At a glance.
| Criterion | GitHub Actions | Buildkite |
|---|---|---|
| Pricing | ||
| Free tier | Yes | Yes |
| Pricing model | Per-minute billing beyond the included allowance: $0.006/minute (Linux), $0.010/minute (Windows), $0.062/minute (macOS). Artifact storage overage $0.25/GB-month; cache storage overage $0.07/GB-month. | Hybrid: per-user subscription plus consumption-based pricing for hosted agents, billed per vCPU-minute metered to the second, with no minimums and no rounding. |
| CI/CD | ||
| Self-hosted runners | Free for self-hosted runners — no usage charges beyond the runner's own infrastructure cost. | Self-hosted agents are the default model, not an add-on. Free plan includes up to 10 concurrent jobs; Pro plan includes 10 self-hosted agents. |
Where they differ.
Pricing model
- GitHub Actions
- Per-minute billing beyond the included allowance: $0.006/minute (Linux), $0.010/minute (Windows), $0.062/minute (macOS). Artifact storage overage $0.25/GB-month; cache storage overage $0.07/GB-month.
- Buildkite
- Hybrid: per-user subscription plus consumption-based pricing for hosted agents, billed per vCPU-minute metered to the second, with no minimums and no rounding.
Sources (2) →Sources ↓
- About billing for GitHub Actions ↗
“Linux: $0.006 USD/minute. Windows: $0.010 USD/minute. macOS: $0.062 USD/minute. Shared storage: $0.25 USD per GB/month. Cache storage: $0.07 USD per GB/month.”
Read 2026-09-11 · official docs
- Buildkite Pricing ↗
“Usage is billed per vCPU minute and metered to the second, with no minimums and no rounding.”
Read 2026-09-11 · official pricing
Self-hosted runners
- GitHub Actions
- Free for self-hosted runners — no usage charges beyond the runner's own infrastructure cost.
- Buildkite
- Self-hosted agents are the default model, not an add-on. Free plan includes up to 10 concurrent jobs; Pro plan includes 10 self-hosted agents.
Sources (2) →Sources ↓
- About billing for GitHub Actions ↗
“GitHub Actions is free for self-hosted runners.”
Read 2026-09-11 · official docs
- Buildkite Pricing ↗
“Up to 250 self-hosted agents [on Pro], 10 included.”
Read 2026-09-11 · official pricing
When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.
Which should you choose?
Choose GitHub Actions if…
Repos already on GitHub — no separate CI product to wire up, and self-hosted runners cost nothing to use beyond the hardware itself.
Editorial · Palash Bagchi · approved
Choose Buildkite if…
Teams that already run their own compute and want a CI product built around that from the start, rather than one that treats self-hosting as an escape hatch from a hosted-minutes model.
Editorial · Palash Bagchi · approved
Consider something else if…
- GitHub Actions: Heavy macOS usage — at $0.062/minute it's by far the most expensive runner type here, and a dedicated CI product may price Mac builds differently.
- Buildkite: There's no existing infrastructure to run agents on — the per-user Pro price is separate from and additional to whatever compute the agents themselves need.
Documented by only one.
These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing.
Questions this comparison answers.
Should I choose GitHub Actions or Buildkite?
Pick GitHub Actions if Repos already on GitHub — no separate CI product to wire up, and self-hosted runners cost nothing to use beyond the hardware itself.
Pick Buildkite if Teams that already run their own compute and want a CI product built around that from the start, rather than one that treats self-hosting as an escape hatch from a hosted-minutes model.