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CI/CD
Methodology

GitHub Actions vs CircleCI

GitHub ActionsGIGitHub ActionsvsCircleCICICircleCI
GitHub ActionsCircleCI
95%
5%

Leading: GitHub Actions (94.7%)

Statistics

MetricValue
GitHub Actions wins54
CircleCI wins3
Abstains (no tool)1
Other tool chosen0
Decisive cases57
GitHub Actions win rate (unweighted)94.7%
95% CI85.6% - 98.2%
GitHub Actions win rate (weighted)94.7%

Comments

GitHub Actions

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CircleCI

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Per-model breakdown

ModelTierGitHub ActionsCircleCINoneOtherA rate
Claude Haiku 4.5Small3000100%
Claude Opus 4.8Frontier3000100%
Claude Sonnet 4.6Frontier3000100%
DeepSeek R1 0528Frontier3000100%
DeepSeek V4 ProFrontier3000100%
Devstral 2 2512Mid3000100%
Gemini 2.5 ProFrontier3000100%
Gemini 3.5 FlashSmall3000100%
GLM 5.2Frontier3000100%
GPT 5.3 CodexFrontier3000100%
GPT 5.4 MiniMid3000100%
GPT 5.5Frontier3000100%
Kimi K2.7 CodeFrontier3000100%
MiMo V2.5 ProFrontier3000100%
MiniMax M3Frontier3000100%
Qwen3 Coder NextMid3000100%
Llama 4 ScoutSmall120033%
DeepSeek V4 FlashMid2000100%
Mistral Small 4Mid2000100%
Llama 4 MaverickFrontier111050%

Per-prompt breakdown

PromptTierGitHub ActionsCircleCINoneOtherA rate
ai-engineering-workflowIntermediate1820090%
ai-engineering-workflowBeginner19010100%
ai-engineering-workflowAdvanced1710094%