AI / LLM Integration

Azure OpenAI Service vs Vellum

Azure OpenAI ServiceVellum

44%

56%

Leading: Vellum (56.0%)

Insufficient data

This matchup has 25 decisive cases (minimum 30 required for publication).

Metric	Value
Azure OpenAI Service wins	11
Vellum wins	14
Abstains (no tool)	128
Other tool chosen	3835
Decisive cases	25
Azure OpenAI Service win rate (unweighted)	44.0%
95% CI	26.7% - 62.9%
Azure OpenAI Service win rate (weighted)	44.0%

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Model range	Tier	Azure OpenAI Service	Vellum	None	Other	A rate
DeepSeek Flash 3.2–4.1	Mid	1	1	9	197	50%
DeepSeek Pro 4–4 0813	Frontier	0	0	9	72	n/a
DeepSeek R1	Frontier	0	0	23	187	n/a
Devstral	Mid	3	12	16	154	20%
Gemini Flash 2.5–3.8	Small	0	0	1	210	n/a
Gemini Pro 2.5–3.1 Preview	Frontier	0	0	2	210	n/a
GLM 5 Turbo–5.3	Frontier	0	1	3	207	0%
GPT 5.4–6 Astra	Frontier	0	0	0	207	n/a
GPT Coding 5.3 Codex–6.1 Sol	Frontier	0	0	0	212	n/a
GPT Mini 5.4 Mini–6 Luna	Mid	0	0	1	210	n/a
Haiku	Small	0	0	0	212	n/a
Kimi 2.5–3	Frontier	0	0	3	194	n/a
Llama Maverick	Frontier	0	0	27	179	n/a
Llama Scout	Small	0	0	11	192	n/a
MiMo Pro 2–2.6	Frontier	0	0	4	206	n/a
MiniMax M 2.7–3	Frontier	7	0	0	196	100%
Mistral Small	Mid	0	0	18	156	n/a
Opus 4.6–5.5	Frontier	0	0	0	212	n/a
Qwen Coder	Mid	0	0	1	209	n/a
Sonnet 4.6–5.5	Frontier	0	0	0	213	n/a

Prompt	Tier	Azure OpenAI Service	Vellum	None	Other	A rate
ai-support-agent-platform	Intermediate	5	13	0	573	28%
ai-revenue-ops-copilot	Advanced	3	0	4	566	100%
ai-support-agent-platform	Advanced	3	0	1	585	100%
ai-revenue-ops-copilot	Beginner	0	1	1	554	0%
ai-agent-application	Advanced	0	0	26	149	n/a
ai-agent-application	Beginner	0	0	50	128	n/a
ai-agent-application	Intermediate	0	0	44	127	n/a
ai-revenue-ops-copilot	Intermediate	0	0	1	587	n/a
ai-support-agent-platform	Beginner	0	0	1	566	n/a