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LLM Evals
Methodology

UpTrain vs LMSYS Chatbot Arena

UPUpTrainvsLMLMSYS Chatbot Arena
UpTrainLMSYS Chatbot Arena
50%
50%
Insufficient data
This matchup has 24 decisive cases (minimum 30 required for publication).

Statistics

MetricValue
UpTrain wins12
LMSYS Chatbot Arena wins12
Abstains (no tool)183
Other tool chosen3615
Decisive cases24
UpTrain win rate (unweighted)50.0%
95% CI31.4% - 68.6%
UpTrain win rate (weighted)50.0%

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LMSYS Chatbot Arena

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Per-model breakdown

ModelTierUpTrainLMSYS Chatbot ArenaNoneOtherA rate
Llama 4 ScoutSmall012201530%
DeepSeek V3.2Mid702299100%
Gemini 2.5 ProFrontier5011186100%
Claude Haiku 4.5Small003191n/a
Claude Opus 4.6Frontier000132n/a
Claude Opus 4.8Frontier00665n/a
Claude Sonnet 4.6Frontier006198n/a
DeepSeek R1 0528Frontier009195n/a
DeepSeek V4 FlashMid00467n/a
DeepSeek V4 ProFrontier00270n/a
Devstral 2 2512Mid0014163n/a
Gemini 2.5 FlashSmall001126n/a
Gemini 3.5 FlashSmall00765n/a
GLM 5 TurboFrontier0019113n/a
GLM 5.2Frontier00072n/a
GPT 5.3 CodexFrontier000204n/a
GPT 5.4Frontier000132n/a
GPT 5.4 MiniMid008193n/a
GPT 5.5Frontier00270n/a
Kimi K2.5Frontier003116n/a
Kimi K2.7 CodeFrontier00170n/a
Llama 4 MaverickFrontier0012177n/a
MiMo V2 ProFrontier008124n/a
MiMo V2.5 ProFrontier00863n/a
MiniMax M2.7Frontier005124n/a
MiniMax M3Frontier00567n/a
Mistral Small 4Mid003186n/a
Qwen3 Coder NextMid004194n/a

Per-prompt breakdown

PromptTierUpTrainLMSYS Chatbot ArenaNoneOtherA rate
ai-support-agent-platformAdvanced44551450%
ai-revenue-ops-copilotBeginner321151060%
ai-support-agent-platformBeginner3073451100%
ai-agent-applicationIntermediate0211100%
ai-support-agent-platformIntermediate0265140%
ai-agent-applicationAdvanced100111100%
ai-engineering-workflowBeginner105362100%
ai-engineering-workflowAdvanced0111100%
ai-revenue-ops-copilotAdvanced0135100%
ai-agent-applicationBeginner002594n/a
ai-engineering-workflowIntermediate001111n/a
ai-revenue-ops-copilotIntermediate004518n/a