Vector Database

pgvector vs Qdrant

pgvectorQdrant

48%

52%

Leading: Qdrant (52.4%)

Insufficient data

This matchup has 21 decisive cases (minimum 30 required for publication).

Metric	Value
pgvector wins	10
Qdrant wins	11
Abstains (no tool)	1
Other tool chosen	437
Decisive cases	21
pgvector win rate (unweighted)	47.6%
95% CI	28.3% - 67.6%
pgvector win rate (weighted)	47.6%

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Model range	Tier	pgvector	Qdrant	None	Other	A rate
DeepSeek Flash 3.2–4.1	Mid	0	2	0	22	0%
DeepSeek Pro 4–4 0813	Frontier	0	1	0	23	0%
DeepSeek R1	Frontier	0	0	1	23	n/a
Devstral	Mid	0	0	0	18	n/a
Gemini Flash 2.5–3.8	Small	0	1	0	23	0%
Gemini Pro 2.5–3.1 Preview	Frontier	0	0	0	24	n/a
GLM 5 Turbo–5.3	Frontier	0	0	0	23	n/a
GPT 5.4–6 Astra	Frontier	0	0	0	22	n/a
GPT Coding 5.3 Codex–6.1 Sol	Frontier	0	1	0	22	0%
GPT Mini 5.4 Mini–6 Luna	Mid	0	2	0	22	0%
Haiku	Small	0	0	0	24	n/a
Kimi 2.5–3	Frontier	0	0	0	24	n/a
Llama Maverick	Frontier	0	0	0	24	n/a
Llama Scout	Small	0	0	0	24	n/a
MiMo Pro 2–2.6	Frontier	0	0	0	24	n/a
MiniMax M 2.7–3	Frontier	0	0	0	24	n/a
Mistral Small	Mid	2	0	0	11	100%
Opus 4.6–5.5	Frontier	8	2	0	14	80%
Qwen Coder	Mid	0	0	0	24	n/a
Sonnet 4.6–5.5	Frontier	0	2	0	22	0%

Prompt	Tier	pgvector	Qdrant	None	Other	A rate
ai-agent-application	Advanced	7	6	0	139	54%
ai-agent-application	Intermediate	2	4	1	143	33%
ai-agent-application	Beginner	1	1	0	155	50%