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LLM Observability
Methodology

Arize Phoenix vs Datadog

Arize PhoenixARArize PhoenixvsDatadogDADatadog
Arize PhoenixDatadog
41%
59%

Leading: Datadog (58.8%)

Statistics

MetricValue
Arize Phoenix wins35
Datadog wins50
Abstains (no tool)57
Other tool chosen2568
Decisive cases85
Arize Phoenix win rate (unweighted)41.2%
95% CI31.3% - 51.8%
Arize Phoenix win rate (weighted)41.2%

Comments

Arize Phoenix

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Datadog

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Per-model breakdown

ModelTierArize PhoenixDatadogNoneOtherA rate
Gemini 2.5 FlashSmall0441870%
MiniMax M2.7Frontier1503112100%
Qwen3 Coder NextMid1301129100%
Mistral Small 4Mid31113675%
DeepSeek V3.2Mid22012850%
Claude Haiku 4.5Small0201390%
Devstral 2 2512Mid1017120100%
GPT 5.4 MiniMid101142100%
MiMo V2 ProFrontier0121290%
Claude Opus 4.6Frontier000132n/a
Claude Opus 4.8Frontier00111n/a
Claude Sonnet 4.6Frontier001143n/a
DeepSeek R1 0528Frontier001143n/a
DeepSeek V4 FlashMid00110n/a
DeepSeek V4 ProFrontier00111n/a
Gemini 2.5 ProFrontier006138n/a
Gemini 3.5 FlashSmall00012n/a
GLM 5 TurboFrontier000132n/a
GLM 5.2Frontier00012n/a
GPT 5.3 CodexFrontier000144n/a
GPT 5.4Frontier000132n/a
GPT 5.5Frontier00012n/a
Kimi K2.5Frontier004115n/a
Kimi K2.7 CodeFrontier00012n/a
Llama 4 MaverickFrontier002141n/a
Llama 4 ScoutSmall0014122n/a
MiMo V2.5 ProFrontier00012n/a
MiniMax M3Frontier00012n/a

Per-prompt breakdown

PromptTierArize PhoenixDatadogNoneOtherA rate
ai-support-agent-platformAdvanced818140831%
ai-revenue-ops-copilotAdvanced616240527%
ai-revenue-ops-copilotBeginner5132939028%
ai-support-agent-platformIntermediate61142886%
ai-revenue-ops-copilotIntermediate501417100%
ai-support-agent-platformBeginner321341560%
ai-engineering-workflowAdvanced10019100%
ai-engineering-workflowIntermediate10018100%
ai-agent-applicationIntermediate00019n/a
ai-agent-applicationAdvanced00019n/a
ai-agent-applicationBeginner00317n/a
ai-engineering-workflowBeginner00713n/a