CircleCI vs Semaphore
On the evidence we track, CircleCI leads this comparison with a composite score of 76/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for ci/cd tools. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
CircleCI
LeaderA continuous integration and deployment service that automates software testing, building, and deployment across multiple compute environments, with intelligent workflow orchestration and parallel execution capabilities.
Semaphore
A delivery platform that combines CI/CD capabilities with AI-driven features through a command-line interface.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
CircleCI
LeaderFree plan with 30k monthly credits. Performance plan starts at $15/month with usage-based pricing for additional credits.
- FreeFree
- 30,000 free credits/month
- Docker, Windows, Linux, Arm, macOS environments
- Self-hosted runners
- Docker layer caching
- Deploys
- +3 more
- Performance$15/month + $0.60 per 1,000 additional credits
- 30,000 free credits/month included
- All compute environments including GPU
- Docker layer caching
- Deploys
- Single sign-on (SSO)
- +4 more
Semaphore
Pay-per-minute metered compute: $0.0025/min (self-hosted) to $0.09/min (MacOS). Includes 20 concurrent jobs, $15/month free credits, 9.6 GB cache, and free support. Optional modular support and success services.
- Compute - Ubuntu ARM$0.003–$0.012/min depending on vCPU
- Compute - Ubuntu x64$0.0075–$0.015/min depending on vCPU
- Compute - MacOS$0.09/min
- Compute - Self-Hosted$0.0025/min
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
CircleCI
Leader- AWS
- AWS ECS
- AWS ECR
- AWS EKS
- AWS S3
- AWS Lambda
- GitHub
- Docker
- Heroku
- Netlify
- OpenID Connect
- Vault
- GCP
- Stripe
- MCP
- Firebase Distribution
- Fastlane
- Rollbar
Semaphore
- Flowdock
CircleCI or Semaphore: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.