AIIStack index

AI company leaderboards

Rankings built from attributable activity—not sponsorships, votes, or self-reported claims. Drill into every company’s evidence before making a decision.

No paid placement

Scores are cohort-normalized and use a versioned model. Visibility remains withheld until its evidence panel exists.

Tracking 15 companies across 7 governed markets.

Vector databases

Popularity leaders

Open-source adoption signals such as GitHub stars and forks.

3 companies with sufficient evidence

#1
Qdrant

Vector database and search engine for AI applications.

Popularity

72.14

+0
#2
Weaviate

Open-source vector database and hybrid-search platform for AI applications.

Popularity

66.43

+0
#3
Pinecone

Managed vector database for semantic search and AI applications.

Popularity

26.43

+0
RankCompanyScoreChange
#1
Qdrant

34,419 GitHub stars

72.14+0
#2
Weaviate

16,791 GitHub stars

66.43+0
#3
Pinecone

448 GitHub stars

26.43+0

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