Choose Buildkite if you need
- Integration with PagerDuty, Datadog or Honeycomb. We haven't found them on Semaphore's website.
At a glance
- Buildkite has a free plan. We haven't confirmed one for Semaphore.
- Buildkite offers a free trial (30 days). We haven't confirmed one for Semaphore.
- Buildkite's lowest paid plan is Pro Plan at $30 per active user per month, as of October 23, 2026.
- Both are available on API.
- Only Semaphore lists CLI.
- Both work with Slack.
- Both list SOC 2 and SSO.
- Only Semaphore lists ISO 27001.
- Both have a public API.
- Semaphore can be self-hosted. We haven't confirmed that for Buildkite.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Semaphore if you need
- CLI. We haven't found it on Buildkite's website.
- ISO 27001. We haven't found it on Buildkite's website.
Buildkite
Nobody has reviewed Buildkite yet. Its rating shows once it has 3 reviews.
Review Buildkite
Semaphore
Nobody has reviewed Semaphore yet. Its rating shows once it has 3 reviews.
Review SemaphoreThe facts
- What it does
- BuildkiteCI ready for the demands of AI-led workflows
- SemaphoreCI built for coding agents - fast, affordable, and enterprise-ready
- Free plan
- BuildkiteYes
- SemaphoreNot confirmed
- Pricing
- BuildkiteNot confirmed
- SemaphoreNot confirmed
- Paid plans from
- Buildkite
What they share
From the platforms and integrations each website lists.
Platforms
Both
- API
Only BuildkiteNothing else listed
Only Semaphore
- CLI
Integrations
Both
- Slack
Only Buildkite
- PagerDuty
- Datadog
- Honeycomb
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Buildkite and Semaphore yet.
Used either of them?
Your review makes this comparison better for the next person. Review Buildkite or review Semaphore.