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Vector Database
Methodology

Chroma vs pgvector

ChromaCHChromavsPGpgvector
Chromapgvector
47%
53%

Leading: pgvector (53.3%)

Insufficient data
This matchup has 15 decisive cases (minimum 30 required for publication).

Statistics

MetricValue
Chroma wins7
pgvector wins8
Abstains (no tool)1
Other tool chosen332
Decisive cases15
Chroma win rate (unweighted)46.7%
95% CI24.8% - 69.9%
Chroma win rate (weighted)46.7%

Comments

Chroma

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pgvector

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Per-model breakdown

ModelTierChromapgvectorNoneOtherA rate
Mistral Small 4Mid520371%
Claude Opus 4.8Frontier060120%
DeepSeek V4 FlashMid10017100%
DeepSeek V4 ProFrontier10017100%
Claude Haiku 4.5Small00018n/a
Claude Sonnet 4.6Frontier00018n/a
DeepSeek R1 0528Frontier00117n/a
Devstral 2 2512Mid00015n/a
Gemini 2.5 ProFrontier00018n/a
Gemini 3.5 FlashSmall00018n/a
GLM 5.2Frontier00017n/a
GPT 5.3 CodexFrontier00018n/a
GPT 5.4 MiniMid00018n/a
GPT 5.5Frontier00018n/a
Kimi K2.7 CodeFrontier00018n/a
Llama 4 MaverickFrontier00018n/a
Llama 4 ScoutSmall00018n/a
MiMo V2.5 ProFrontier00018n/a
MiniMax M3Frontier00018n/a
Qwen3 Coder NextMid00018n/a

Per-prompt breakdown

PromptTierChromapgvectorNoneOtherA rate
ai-agent-applicationAdvanced16010714%
ai-agent-applicationBeginner41011480%
ai-agent-applicationIntermediate21111167%