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Head-to-head · Ai Databases

Zilliz Cloud vs Weaviate

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Zilliz Cloud #1 in Ai Databases 8.9/10 Free plan · 30-day trial Free planFree trial✓ 2 of 3 features Visit Zilliz Cloud
Weaviate #3 in Ai Databases 8.7/10 Free plan Free plan✓ 2 of 3 features Visit Weaviate

Zilliz Cloud leads on 0 checks, Weaviate on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreZilliz Cloud · 8.9/10
  • Free planboth
  • Free trialonly Zilliz Cloud

Zilliz Cloud scores higher on our rubric for ai databases: 8.9 against 8.7 out of 10; our editors rank them #1 and #3.

Zilliz Cloud is the better fit for teams wanting a managed vector database with a free tier. Weaviate is the better fit for teams needing cloud or self-hosted vector search.

  • Zilliz Cloud fits best

    Teams wanting a managed vector database with a free tier

  • Weaviate fits best

    Teams needing cloud or self-hosted vector search

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Zilliz Cloud 8.9/10 Visit ↗ Weaviate 8.7/10 Visit ↗
At a glance
Editor score 8.9 8.7
Ranking #1 in Ai Databases #3 in Ai Databases
Best for Teams wanting a managed vector database with a free tier Teams needing cloud or self-hosted vector search
Pricing model Free plan + paid Free plan + paid
Starting price — $45/mo
Free plan ✓ ✓
Free trial 30 days —
Deployment Cloud Cloud, Self-hosted
Platforms Web Web
Support Docs Email, Phone, Community, Docs · 24/7
Compliance SSO/SAML, 2FA, GDPR, HIPAA, SOC 2, ISO 27001 SOC 2, HIPAA, SSO/SAML
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Zilliz Cloud 2/3 · Weaviate 2/3
Metadata filtering ✓ ✓
Hybrid search ✓ ✓
Managed backups Not checked yet Not checked yet
Specs
Deployment Not checked yet Not checked yet
Index types FLAT, IVF_FLAT, IVF_SQ8, IVF_PQ, HNSW, DISKANN, AUTOINDEX, SCANN, HNSW_SQ, HNSW_PQ, HNSW_PRQ, IVF_RABITQ, SPARSE_INVERTED_INDEX, SPARSE_WAND HNSW, Flat, Dynamic, HFresh
Max vector dimensions 32768 Not checked yet
Our review
Pros
  • Hybrid dense-sparse, BM25, multimodal, and filtered vector search
  • Free plan includes 5 GB storage and 2.5 million vCUs monthly
  • RBAC, SSO, MFA, private networking, and multiple compliance options
  • Hybrid vector and BM25 keyword search with metadata filtering
  • Cloud and self-hosted deployment with multiple index types
  • REST, GraphQL, gRPC APIs and five official client-language options
Cons
  • Paid pricing varies by usage, deployment, provider, region, and resources
  • Deployment is cloud-only
  • Support channels list documentation only
  • Free plan is limited to 100,000 objects and 1 GB memory
  • Flex starts at $45 per month with a shared cloud cluster
  • Premium requires a $400 monthly prepaid contract
Our verdict

Zilliz Cloud is a managed Milvus-based vector database for teams building AI applications. It serves prototypes, development workloads, and production systems that need vector similarity search, metadata filtering, hybrid retrieval,…

Read the review →

Weaviate is an open-source vector database for developers building semantic search, retrieval-augmented generation, recommendations, and other AI applications. It stores objects with vector embeddings and supports vector similarity,…

Read the review →
  1. Zilliz CloudAi Databases 8.9Free plan · 30-day trial
  2. WeaviateAi Databases 8.7Free plan

Strengths and trade-offs

  • Zilliz Cloud — where it wins

    • Hybrid dense-sparse, BM25, multimodal, and filtered vector search
    • Free plan includes 5 GB storage and 2.5 million vCUs monthly
    • RBAC, SSO, MFA, private networking, and multiple compliance options

    Where it doesn't

    • Paid pricing varies by usage, deployment, provider, region, and resources
    • Deployment is cloud-only
    • Support channels list documentation only
  • Weaviate — where it wins

    • Hybrid vector and BM25 keyword search with metadata filtering
    • Cloud and self-hosted deployment with multiple index types
    • REST, GraphQL, gRPC APIs and five official client-language options

    Where it doesn't

    • Free plan is limited to 100,000 objects and 1 GB memory
    • Flex starts at $45 per month with a shared cloud cluster
    • Premium requires a $400 monthly prepaid contract
  • Zilliz Cloud8.9/10 · Free plan · 30-day trial

    A managed vector database with hybrid search, enterprise controls, and a free tier.

    Visit Zilliz CloudFull verdict →
  • Weaviate8.7/10 · Free plan

    A flexible vector database with hybrid search, multiple APIs, and cloud or self-hosted deployment.

    Visit WeaviateFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update