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LLM Observability
Methodology

Arize Phoenix vs Datadog

Arize PhoenixARArize PhoenixvsDatadogDADatadog
Arize PhoenixDatadog
48%
52%

Leading: Datadog (51.5%)

Statistics

MetricValue
Arize Phoenix wins48
Datadog wins51
Abstains (no tool)129
Other tool chosen3777
Decisive cases99
Arize Phoenix win rate (unweighted)48.5%
95% CI38.9% - 58.2%
Arize Phoenix win rate (weighted)48.5%

Comments

Arize Phoenix

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Datadog

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Per-model breakdown

ModelTierArize PhoenixDatadogNoneOtherA rate
Gemini 2.5 FlashSmall0431820%
Qwen3 Coder NextMid1902188100%
MiniMax M2.7Frontier1503106100%
Mistral Small 4Mid71319488%
DeepSeek V3.2Mid22012250%
Devstral 2 2512Mid3025152100%
Claude Haiku 4.5Small0332000%
Gemini 3.5 FlashSmall10182100%
GPT 5.4 MiniMid105204100%
Llama 4 ScoutSmall01291680%
MiMo V2 ProFrontier0121230%
Claude Opus 4.6Frontier000126n/a
Claude Opus 4.8Frontier00777n/a
Claude Sonnet 4.6Frontier007203n/a
DeepSeek R1 0528Frontier002208n/a
DeepSeek V4 FlashMid00479n/a
DeepSeek V4 ProFrontier00183n/a
Gemini 2.5 ProFrontier006204n/a
GLM 5 TurboFrontier000126n/a
GLM 5.2Frontier00084n/a
GPT 5.3 CodexFrontier000210n/a
GPT 5.4Frontier000126n/a
GPT 5.5Frontier00381n/a
Kimi K2.5Frontier004110n/a
Kimi K2.7 CodeFrontier00083n/a
Llama 4 MaverickFrontier0014195n/a
MiMo V2.5 ProFrontier00678n/a
MiniMax M3Frontier00183n/a

Per-prompt breakdown

PromptTierArize PhoenixDatadogNoneOtherA rate
ai-revenue-ops-copilotAdvanced916250036%
ai-support-agent-platformAdvanced817150732%
ai-revenue-ops-copilotBeginner5133048828%
ai-support-agent-platformIntermediate81152589%
ai-engineering-workflowAdvanced71012788%
ai-support-agent-platformBeginner331750850%
ai-revenue-ops-copilotIntermediate501516100%
ai-engineering-workflowIntermediate300134100%
ai-agent-applicationAdvanced000136n/a
ai-agent-applicationBeginner0021117n/a
ai-agent-applicationIntermediate001136n/a
ai-engineering-workflowBeginner005583n/a