Zilliz Cloud
Fully managed, Milvus-powered vector database for AI, RAG, and semantic search, with a perpetual free tier.
- Card required
- No
Zilliz Cloud scores 5.2/10 for free value in Embeddings. The main constraint: One Free cluster per organization with 5 GB storage (~1M 768-dim vectors), 2.5M vCUs/month, and up to 5 collections, no credit card required.
Free value score
5.2 / 10Show the math
Key metrics
What you get
5 GB storage and 2.5M vCUs/month free, perpetually, with no credit card
Fully managed Milvus, the leading open-source vector database, on GCP
Up to 5 collections with AUTOINDEX, hybrid search, and core APIs
Built-in encryption in transit and at rest, plus console-managed backups
Gotchas
- 5 GB storage per cluster
The Free cluster is capped at 5 GB of storage, equivalent to roughly 1 million 768-dimensional vectors per cluster.
- 2.5M vCUs per month
Read and write operations consume virtual compute units (vCUs); the Free plan includes 2.5 million vCUs per month, after which workloads are throttled/paused until the monthly reset or an upgrade.
- Up to 5 collections
A Free cluster allows a maximum of 5 collections (Serverless allows 100).
- One Free cluster per organization
Only 1 Free cluster is permitted per organization; you can drop and recreate it but cannot run multiple Free clusters.
- GCP-only shared environment
Free clusters run only on Google Cloud in a shared (multi-tenant) environment, with no dedicated compute, auto-scaling, replicas, or VPC peering.
- 2 MB/s insert/upsert rate
Free clusters are limited to 2 MB/s for insert and upsert operations, versus 10 MB/s for Serverless.
- Reduced search limits
On Free clusters search nq must be <= 10 and topK <= 1,024 entities, and a maximum of 2 shards is allowed per collection.
- No uptime SLA
No uptime SLA is offered on the Free plan; SLAs (99.95%+) require Enterprise or higher paid plans.
- No advanced security/governance
SSO (SAML), granular RBAC, audit logs, private endpoints, CMEK, and HIPAA eligibility are reserved for paid Enterprise/Business Critical plans.
Sources
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"A Free cluster is limited to 1 per organization. - A Free cluster includes 5 GB capacity, up to 2.5 million vCUs per month, and up to 5 collections."
https://docs.zilliz.com/docs/limits -
"5 GB storage / 2.5M vCUs per month included / Up to 5 collections / Start for Free"
https://zilliz.com/pricing -
"Zilliz Cloud offers a free cluster that allows you to use basic vector database features at no cost... 5 GB storage (Enough for 1M 768 dim vectors.) 2.5M vCUs per month, Up to 5 collections. To start, simply register an account on Zilliz Cloud. No payment information is required."
https://docs.zilliz.com/docs/free-trials -
"By the end of 2024, Milvus and Zilliz Cloud had over 10,000 global enterprise customers."
https://cloud.google.com/customers/zilliz