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Vector Database
Methodology

Qdrant vs pgvector

QDQdrantvsPGpgvector
Qdrantpgvector
44%
56%

Leading: pgvector (56.3%)

Insufficient data
This matchup has 16 decisive cases (minimum 30 required for publication).

Statistics

MetricValue
Qdrant wins7
pgvector wins9
Abstains (no tool)1
Other tool chosen387
Decisive cases16
Qdrant win rate (unweighted)43.8%
95% CI23.1% - 66.8%
Qdrant win rate (weighted)43.8%

Comments

Qdrant

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pgvector

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Per-model breakdown

ModelTierQdrantpgvectorNoneOtherA rate
Claude Opus 4.8Frontier1701313%
DeepSeek V4 FlashMid20019100%
GPT 5.4 MiniMid20019100%
Mistral Small 4Mid020100%
DeepSeek V4 ProFrontier10020100%
Gemini 3.5 FlashSmall10020100%
Claude Haiku 4.5Small00021n/a
Claude Sonnet 4.6Frontier00021n/a
DeepSeek R1 0528Frontier00120n/a
Devstral 2 2512Mid00015n/a
Gemini 2.5 ProFrontier00021n/a
GLM 5.2Frontier00020n/a
GPT 5.3 CodexFrontier00021n/a
GPT 5.5Frontier00021n/a
Kimi K2.7 CodeFrontier00021n/a
Llama 4 MaverickFrontier00021n/a
Llama 4 ScoutSmall00021n/a
MiMo V2.5 ProFrontier00021n/a
MiniMax M3Frontier00021n/a
Qwen3 Coder NextMid00021n/a

Per-prompt breakdown

PromptTierQdrantpgvectorNoneOtherA rate
ai-agent-applicationAdvanced47012236%
ai-agent-applicationIntermediate31112875%
ai-agent-applicationBeginner0101370%