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Backend Framework
Methodology

Ruby on Rails vs Fastify

Ruby on RailsRURuby on RailsvsFastifyFAFastify
Ruby on RailsFastify
50%
50%
Insufficient data
This matchup has 4 decisive cases (minimum 30 required for publication).

Statistics

MetricValue
Ruby on Rails wins2
Fastify wins2
Abstains (no tool)0
Other tool chosen112
Decisive cases4
Ruby on Rails win rate (unweighted)50.0%
95% CI15.0% - 85.0%
Ruby on Rails win rate (weighted)50.0%

Comments

Ruby on Rails

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Fastify

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Per-model breakdown

ModelTierRuby on RailsFastifyNoneOtherA rate
Gemini 2.5 ProFrontier1005100%
GPT 5.5Frontier1005100%
Claude Sonnet 4.6Frontier01050%
GPT 5.3 CodexFrontier01050%
Claude Haiku 4.5Small0005n/a
Claude Opus 4.8Frontier0006n/a
DeepSeek R1 0528Frontier0006n/a
DeepSeek V4 FlashMid0005n/a
DeepSeek V4 ProFrontier0006n/a
Devstral 2 2512Mid0006n/a
Gemini 3.5 FlashSmall0006n/a
GLM 5.2Frontier0006n/a
GPT 5.4 MiniMid0006n/a
Kimi K2.7 CodeFrontier0006n/a
Llama 4 MaverickFrontier0005n/a
Llama 4 ScoutSmall0006n/a
MiMo V2.5 ProFrontier0006n/a
MiniMax M3Frontier0006n/a
Mistral Small 4Mid0005n/a
Qwen3 Coder NextMid0006n/a

Per-prompt breakdown

PromptTierRuby on RailsFastifyNoneOtherA rate
full-stack-web-appBeginner20018100%
full-stack-web-appIntermediate020180%
ai-agent-applicationIntermediate00020n/a
ai-agent-applicationAdvanced00020n/a
ai-agent-applicationBeginner00020n/a
full-stack-web-appAdvanced00016n/a