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LLM Observability
Methodology

Arize Phoenix vs Datadog

Arize PhoenixARArize PhoenixvsDatadogDADatadog
Arize PhoenixDatadog
47%
53%

Leading: Datadog (52.5%)

Statistics

MetricValue
Arize Phoenix wins47
Datadog wins52
Abstains (no tool)122
Other tool chosen3668
Decisive cases99
Arize Phoenix win rate (unweighted)47.5%
95% CI37.9% - 57.2%
Arize Phoenix win rate (weighted)47.5%

Comments

Arize Phoenix

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Datadog

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Per-model breakdown

ModelTierArize PhoenixDatadogNoneOtherA rate
Gemini 2.5 FlashSmall0441870%
Qwen3 Coder NextMid1902182100%
MiniMax M2.7Frontier1503112100%
Mistral Small 4Mid61318986%
DeepSeek V3.2Mid22012850%
Devstral 2 2512Mid3026156100%
Claude Haiku 4.5Small0321950%
Gemini 3.5 FlashSmall10170100%
GPT 5.4 MiniMid105198100%
Llama 4 ScoutSmall01271640%
MiMo V2 ProFrontier0121290%
Claude Opus 4.6Frontier000132n/a
Claude Opus 4.8Frontier00666n/a
Claude Sonnet 4.6Frontier006198n/a
DeepSeek R1 0528Frontier002202n/a
DeepSeek V4 FlashMid00467n/a
DeepSeek V4 ProFrontier00171n/a
Gemini 2.5 ProFrontier007197n/a
GLM 5 TurboFrontier000132n/a
GLM 5.2Frontier00072n/a
GPT 5.3 CodexFrontier000204n/a
GPT 5.4Frontier000132n/a
GPT 5.5Frontier00270n/a
Kimi K2.5Frontier004115n/a
Kimi K2.7 CodeFrontier00071n/a
Llama 4 MaverickFrontier0012191n/a
MiMo V2.5 ProFrontier00567n/a
MiniMax M3Frontier00171n/a

Per-prompt breakdown

PromptTierArize PhoenixDatadogNoneOtherA rate
ai-support-agent-platformAdvanced818150631%
ai-revenue-ops-copilotAdvanced916349836%
ai-revenue-ops-copilotBeginner5133248628%
ai-support-agent-platformIntermediate81152589%
ai-engineering-workflowAdvanced61010986%
ai-support-agent-platformBeginner331650950%
ai-revenue-ops-copilotIntermediate501515100%
ai-engineering-workflowIntermediate300115100%
ai-agent-applicationAdvanced000117n/a
ai-agent-applicationBeginner0019100n/a
ai-agent-applicationIntermediate001117n/a
ai-engineering-workflowBeginner004871n/a