vioscale
Comparison

Buildkite vs Semaphore CI

On the evidence we track, Semaphore CI leads this comparison with a composite score of 68/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Buildkite full profile →Semaphore CI full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Buildkite59
★Semaphore CI68
Score
Vioscale score
Buildkite59 / 100medium · 73%
Semaphore CI68 / 100medium · 62%
Pricing
Free tier
Buildkite✓
Semaphore CI✓
Model
Buildkitefreemium
Semaphore CIfreemium
Price level
Buildkitemid
Semaphore CIlow
Transparent
Buildkite✓
Semaphore CI✓
Integrations
Count
Buildkite35
Semaphore CI2
Security
Disclosure policy
Buildkite✓
Semaphore CI–
Gdpr
Buildkite✓
Semaphore CI–
Iso27001
Buildkite–
Semaphore CI✓
Pci
Buildkite–
Semaphore CI✓
Soc2
Buildkite✓
Semaphore CI✓
Reliability
Status page
Buildkite✓
Semaphore CI✓
Market
Availability
BuildkiteAvailable worldwide · HQ AU
Semaphore CI–

Capabilities

Feature-by-feature on the axes that matter for ci/cd tools. “-” means undocumented, not absent.

Deployment
Hosting
BuildkiteCloud + self-hosted
Semaphore CICloud + self-hosted
Self-hosted runners
Buildkite✓
Semaphore CI✓
Core
Config-as-code pipelines
Buildkite✓
Semaphore CI✓
Matrix / parallel builds
Buildkite✓
Semaphore CI✓
Build
Container-native builds
Buildkite✓
Semaphore CI✓
Performance
Build caching
Buildkite✓
Semaphore CI-
Security
Secrets management
Buildkite✓
Semaphore CI✓
Delivery
Deployment environments & approvals
Buildkite✓
Semaphore CI✓
Ecosystem
Reusable actions / marketplace
Buildkite✓
Semaphore CI-

What each one is

The product in its own terms, so the numbers below have context.

Buildkite

A CI/CD platform providing flexible pipeline orchestration, automated test optimization, and supply chain security. Supports cloud-hosted and self-managed agents with built-in test analytics, package registries, and integrations across development tools.

Independently observed

Semaphore CI

Leader

Semaphore is a metered-pricing CI/CD platform offering cloud, hybrid, and self-hosted deployment options. Separates compute costs from support services, with transparent per-minute pricing starting at $0.0025/min for self-hosted.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Buildkite

from $30/moSubscriptionFree tier30-day trial

Free tier available. Pro from $30/user/month. Enterprise custom pricing.

  • PersonalFree
    • 3 concurrent jobs
    • 1 user
    • 90-day build retention
    • 250 managed tests
    • 50k test executions/month
    • +1 more
  • Pro$30/active user/month
    • Unlimited concurrent jobs
    • Unlimited users
    • All Linux and Mac M4 agent sizes
    • Cache volumes
    • Git mirror volumes
    • +2 more
  • EnterpriseContact sales
    • SCIM/SAML/ADFS
    • Audit logs
    • Build exports
    • Pipeline templates
    • Premium support SLA
as of verify ↗

Semaphore CI

Leader
HybridFree tier

Free Community Edition (self-hosted, open source). Paid Semaphore Cloud and Enterprise Edition available.

  • Community EditionFree
  • Semaphore Cloud-
  • Enterprise EditionContact sales
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Buildkite✓
Semaphore CI✓
CLI
Buildkite✓
Semaphore CI✓
Deployment
Cloud / SaaS
Buildkite✓
Semaphore CI✓
Self-hosted
Buildkite✓
Semaphore CI✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • GitHub

Buildkite

35 total - 34 not shared
  • GitHub Enterprise
  • Bitbucket Server
  • AWS ECR
  • AWS S3
  • AWS CloudFormation
  • AWS IAM
  • AWS CloudWatch
  • Docker
  • Kubernetes
  • Jenkins
  • CircleCI
  • NPM
  • PyPI
  • RubyGems
  • Maven
  • Apt
  • RPM
  • Helm
  • Alpine
  • Jest
  • Mocha
  • Cypress
  • Playwright
  • Jasmine
  • +10 more
Independently observed

Semaphore CI

Leader
2 total - 1 not shared
  • Flowdock
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.