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LLM Evals
Methodology

Weights & Biases vs Promptfoo

Weights & BiasesWEWeights & BiasesvsPromptfooPRPromptfoo
Weights & BiasesPromptfoo
50%
50%

Leading: Promptfoo (50.2%)

Statistics

MetricValue
Weights & Biases wins122
Promptfoo wins123
Abstains (no tool)237
Other tool chosen4046
Decisive cases245
Weights & Biases win rate (unweighted)49.8%
95% CI43.6% - 56.0%
Weights & Biases win rate (weighted)49.8%

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Promptfoo

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Model range breakdown

Model rangeTierWeights & BiasesPromptfooNoneOtherA rate
DeepSeek Flash 3.2–4.1Mid05262050%
DeepSeek Pro 4–4 0813Frontier0421020%
DeepSeek R1Frontier10012218100%
DevstralMid3461914285%
Gemini Flash 2.5–3.8Small41141216875%
Gemini Pro 2.5–3.1 PreviewFrontier151721517%
GLM 5 Turbo–5.3Frontier025191960%
GPT 5.4–6 AstraFrontier0152340%
GPT Coding 5.3 Codex–6.1 SolFrontier0122370%
GPT Mini 5.4 Mini–6 LunaMid11092179%
HaikuSmall004227n/a
Kimi 2.5–3Frontier01652050%
Llama MaverickFrontier0018213n/a
Llama ScoutSmall25029160100%
MiMo Pro 2–2.6Frontier10161719638%
MiniMax M 2.7–3Frontier03122210%
Mistral SmallMid01252090%
Opus 4.6–5.5Frontier0592250%
Qwen CoderMid004227n/a
Sonnet 4.6–5.5Frontier0011229n/a

Per-prompt breakdown

PromptTierWeights & BiasesPromptfooNoneOtherA rate
ai-revenue-ops-copilotAdvanced367352884%
ai-support-agent-platformAdvanced228555273%
ai-engineering-workflowAdvanced525113717%
ai-revenue-ops-copilotIntermediate1511554958%
ai-support-agent-platformIntermediate1412654854%
ai-engineering-workflowBeginner02482660%
ai-engineering-workflowIntermediate418115018%
ai-revenue-ops-copilotBeginner1461355170%
ai-support-agent-platformBeginner1258048771%
ai-agent-applicationIntermediate0311710%
ai-agent-applicationAdvanced0201710%
ai-agent-applicationBeginner02401360%