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LLM Evals
Methodology

MLflow vs Arize Phoenix

MLMLflowvsArize PhoenixARArize Phoenix
MLflowArize Phoenix
33%
67%

Leading: Arize Phoenix (66.7%)

Insufficient data
This matchup has 9 decisive cases (minimum 30 required for publication).

Statistics

MetricValue
MLflow wins3
Arize Phoenix wins6
Abstains (no tool)36
Other tool chosen955
Decisive cases9
MLflow win rate (unweighted)33.3%
95% CI12.1% - 64.6%
MLflow win rate (weighted)33.3%

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Arize Phoenix

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Per-model breakdown

ModelTierMLflowArize PhoenixNoneOtherA rate
Llama 4 ScoutSmall30343100%
GPT 5.4 MiniMid021510%
Qwen3 Coder NextMid023490%
MiniMax M2.7Frontier011500%
Mistral Small 4Mid010500%
Claude Haiku 4.5Small00151n/a
Claude Opus 4.6Frontier00054n/a
Claude Sonnet 4.6Frontier00054n/a
DeepSeek R1 0528Frontier00252n/a
DeepSeek V3.2Mid00943n/a
Devstral 2 2512Mid00150n/a
Gemini 2.5 FlashSmall00052n/a
Gemini 2.5 ProFrontier00648n/a
GLM 5 TurboFrontier00747n/a
GPT 5.3 CodexFrontier00054n/a
GPT 5.4Frontier00054n/a
Kimi K2.5Frontier00048n/a
Llama 4 MaverickFrontier00053n/a
MiMo V2 ProFrontier00252n/a

Per-prompt breakdown

PromptTierMLflowArize PhoenixNoneOtherA rate
ai-support-agent-platformIntermediate21415967%
ai-support-agent-platformBeginner03251410%
ai-revenue-ops-copilotBeginner104163100%
ai-revenue-ops-copilotIntermediate0111620%
ai-revenue-ops-copilotAdvanced0111620%
ai-support-agent-platformAdvanced001168n/a