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Buying question

What are the best managed vector database platforms for a production retrieval-augmented generation application?

Which brands each model API named when asked this question, and which pages it cited. Answer text is not published.
Snapshot Sep 12, 2026. Each category is re-run in rotation, every few weeks.

Recommendation

Kind of question

3

Model APIs

7

Brands named

12

Pages cited

Brands

Brands the answers named

Ordered by how many model APIs named the brand, then by mentions. A mention is not an endorsement or a position.
Rank#BrandModel APIsMentionsOwn-site citationsNamed by
1Zilliz Cloud / Milvuszilliz.com260OpenAI · Google
2Chromatrychroma.com240OpenAI · Google
3Qdrantqdrant.tech240OpenAI · Google
4Weaviateweaviate.io240OpenAI · Google
5Pineconepinecone.io230OpenAI · Google
6Redisredis.io121Google
7Amazon OpenSearch Serviceaws.amazon.com110Google

Model APIs

What each model API returned

One row per model API. The hash identifies the exact answer without publishing it.
Model APIModelBrands namedCitationsDomainsAnswer hash
OpenAIopenai/gpt-4o-miniPinecone · Weaviate · Qdrant · Zilliz Cloud / Milvus · Chroma66aa989829…7794e
Anthropicanthropic/claude-haiku-4-5None named009fad189b…11db6
Googlegoogle/gemini-2.5-flashPinecone · Weaviate · Qdrant · Zilliz Cloud / Milvus · Redis · Amazon OpenSearch Service · Chroma667d5f3f4c…f96c5

Sources

Pages the answers cited

Hostnames come from the URLs the answers returned. Best position is the earliest place a page was cited in an answer.
DomainCited pageBest positionCited byCitations
gigaspaces.comhttps://gigaspaces.com/blog/best-vector-database-solutions-for-rag-applications1Google1
mehmetozkaya.medium.comhttps://mehmetozkaya.medium.com/exploring-vector-databases-pinecone-chroma-weaviate-qdrant-milvus-pgvector-and-redis-f0618fe9e92d1OpenAI1
reddit.comhttps://reddit.com/r/Rag/comments/1mqp4qs/best_vector_db_for_production_ready_rag/2Google1
strapi.iohttps://strapi.io/blog/best-vector-databases-ai-applications2OpenAI1
alphacorp.aihttps://alphacorp.ai/blog/best-vector-databases-for-rag-2026-top-7-picks3Google1
iternal.aihttps://iternal.ai/insights/best-vector-databases-20263OpenAI1
pecollective.comhttps://pecollective.com/tools/best-vector-databases/4Google1
youtube.comhttps://youtube.com/watch?v=aX_hdQEintc4OpenAI1
digitalapplied.comhttps://digitalapplied.com/blog/vector-databases-for-ai-agents-pinecone-qdrant-20265OpenAI1
redis.iohttps://redis.io/blog/vector-database-alternatives-rag-pipelines/5Google1
dev.tohttps://dev.to/krunalkanojiya/pinecone-vs-weaviate-vs-milvus-vs-qdrant-which-vector-db-in-2026-26dc6OpenAI1
pingcap.comhttps://pingcap.com/compare/best-vector-database/6Google1
Snapshots
794067bc-f4fa-456f-8063-1db7efff0c35
Question set
vector-database-platforms-2026-07-27
Benchmark version
4-vector-database-platforms-2026-07-27-models-64232fd32583
What is kept
Measured in Vector DBs. Full answers are not stored or published, and no customer data is included.

See how often AI names you.

Enter your website. In about two minutes, Rank.ai asks ChatGPT, Claude and Gemini 12 questions your customers ask and grades how often they name you.

  • Your grade out of 100How often AI names you, cites your site, and how high it ranks you.
  • Who gets namedEvery competitor in the answers, most named first.
  • The pages AI readsThe sources behind each answer.
  • Three fixesWhat to fix first, with a brief for the first article.