Best Vector Databases for enterprise

Ranked by AI-assistant recommendations, with breadth of integrations and documented capabilities weighted up. We ask ChatGPT, Claude, Perplexity, Gemini and Copilot real buyer questions every hour and record which brands they name.

1. #1Pinecone

   100% AI citation rate(5 questions)

   From:

   $20/month flat

   Free tier:

   yes

   Integrations listed:

   3

   Fully managed infrastructure · Scales effortlessly · Pay-as-you-go pricing

   Free Starter plan available · Multiple usage tiers

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2. #2Weaviate

   100% AI citation rate(5 questions)

   From:

   $0/mo

   Free tier:

   yes

   Always free — 1 cluster per user · 100,000 objects, 1 GB memory · 1 collection, up to 3 tenants

   Easy entry with no credit card · Flexible pay-as-you-go model

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3. #3Milvus

   100% AI citation rate(5 questions)
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4. #4Qdrant

   80% AI citation rate(5 questions)

   Free tier:

   yes

   Integrations listed:

   3

   Single Node Cluster · 0.5 vCPU / 1GB RAM / 4 GB Disk · Dedicated Resources

   Free tier for testing and prototypes · Flexible pricing based on usage

   See Qdrant's AI visibilityClaim this listing

5. #5Chroma

   80% AI citation rate(5 questions)

   From:

   $0/month

   Free tier:

   yes

   Usage-based pricing · 10 databases for Starter plan · 10 team members for Starter plan

   Easy to start with free model · Flexible usage-based pricing

   See Chroma's AI visibilityClaim this listing

6. #6Vespa

   60% AI citation rate(5 questions)

   From:

   $0.05/hour

   Pro-active remediation of issues · Unlimited support cases · Automated ops, deployments and upgrades

   Flexible pricing based on resource usage · Various support options available

   See Vespa's AI visibilityClaim this listing

7. #7Marqo

   0% AI citation rate(5 questions)

   Purpose built for discovery · Multimodal by default · Built for scale

   Transforms search and discovery · Measurable ROI in 14 days

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8. #8MongoDB Atlas Vector

   0% AI citation rate(5 questions)
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9. #9Elastic Vector

   0% AI citation rate(5 questions)
   See Elastic Vector's AI visibilityClaim this listing

10. #10LanceDB

    0% AI citation rate(5 questions)

    From:

    $779/month

    Multimodal Lakehouse platform · Flexible data evolution features · Supports distributed vector search

    Scalable for large datasets · Optimized for vector search

    See LanceDB's AI visibilityClaim this listing