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Cloud · head to head

Oracle Cloud vs Zilliz

Oracle Cloud logo

Oracle Cloud

Cloud

Enterprise cloud computing services

From
Free
Rated
-
Full reviewWebsite
Zilliz logo

Zilliz

Databases

Managed vector database and vector lakebase for AI applications

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Oracle Cloud the free trial gives US$300 of credit that expires when consumed or after 30 days, whichever comes first; Zilliz pricing structure not publicly disclosed, requires sales contact
  • They diverge on capability: Oracle Cloud covers Autonomous Database, Zilliz covers Vector indexing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Oracle Cloud and Zilliz actually diverge.

Attributes where Oracle Cloud and Zilliz differ
AttributeOracle CloudZilliz
Pricing modelusage-basedcontact-sales
PlatformsLinux, Windows, Api, CliCloud, Self-hosted
CategoryCloudDatabases
Founded20192017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Oracle Cloud

  • Autonomous Database
  • Compute Instances
  • MySQL Database Service
  • Object Storage
  • Block Volume
  • Load Balancers
  • Virtual Cloud Network
  • API Gateway

Only in Zilliz

  • Vector indexing
  • Distributed architecture
  • SQL interface
  • Tensor support
  • Real-time search
  • Cloud-native
  • Open-source compatible

What people use each for

The jobs each tool is most often brought in to do.

Oracle Cloud

  • Running virtual machines, databases and storage on Oracle's cloud infrastructurenot Zilliz
  • Hosting Oracle Database workloads on infrastructure from the same vendornot Zilliz

Zilliz

  • Build retrieval-augmented generation (RAG) systemsnot Oracle Cloud
  • Implement semantic search over documentsnot Oracle Cloud
  • Create multimodal search with text and imagesnot Oracle Cloud
  • Power recommendation engines with vector similaritynot Oracle Cloud
  • Enable similarity search on user embeddingsnot Oracle Cloud

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Oracle Cloud

  • The free trial gives US$300 of credit that expires when consumed or after 30 days, whichever comes first
  • The US$300 cloud credit is available only in select countries
  • Only one Oracle Cloud Free Trial or Always Free account is permitted per person
  • Accounts left idle for 30 days or more are eligible for suspension or termination as abandoned
  • Always Free NoSQL Database is restricted to the Phoenix region
  • Free Tier availability is subject to capacity limits, and the published per-service capacity figures are estimates that assume the entire credit is spent on that one service

Zilliz

  • Pricing structure not publicly disclosed, requires sales contact
  • Operational complexity for self-hosted Milvus deployments
  • Learning curve for those unfamiliar with vector databases
  • Limited built-in analytics compared to some alternatives

Pricing, plan by plan

Oracle Cloud

Free
  • Always FreeFree
    • Oracle Autonomous Database
    • 2 compute instances
    • 100 GB storage
  • Pay-as-You-GoFree
    • Flexible pricing
    • No long-term commitment
    • Enterprise support

Zilliz

Free

No published plan breakdown. See the Zilliz review.

Which should you pick?

Choose Oracle Cloud if

  • You need autonomous database.
  • You want to start without paying.
  • You work on Linux, Windows, Api, Cli.
  • You also want compute instances.
Oracle Cloud review

Choose Zilliz if

  • You need vector indexing.
  • You want to start without paying.
  • You work on Cloud, Self-hosted.
  • You also want distributed architecture.
Zilliz review

Questions people ask

Is Oracle Cloud or Zilliz better?
Neither clearly leads. Oracle Cloud starts at Free and Zilliz at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Oracle Cloud or Zilliz?
Oracle Cloud starts at Free and Zilliz at Free.
Does Oracle Cloud or Zilliz run on more platforms?
Oracle Cloud runs on Linux, Windows, Api, Cli. Zilliz runs on Cloud, Self-hosted.
Can I use Oracle Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is Oracle Cloud best used for?
Oracle Cloud is most often used for running virtual machines, databases and storage on oracle's cloud infrastructure, hosting oracle database workloads on infrastructure from the same vendor. Of those, running virtual machines, databases and storage on oracle's cloud infrastructure and hosting oracle database workloads on infrastructure from the same vendor are not what Zilliz is typically brought in for.
What can Oracle Cloud do that Zilliz cannot?
Oracle Cloud covers Autonomous Database, Compute Instances, MySQL Database Service, Object Storage. Zilliz covers Vector indexing, Distributed architecture, SQL interface, Tensor support.

Answered from the vendors’ own pages

Zilliz: What is the difference between Milvus and Zilliz Cloud?

Milvus is the open-source vector database that you can self-host. Zilliz Cloud is the fully managed service built on Milvus that removes operational overhead and handles scaling automatically.

Source
Zilliz: How many vectors can Zilliz handle?

Milvus and Zilliz Cloud can store and search billions of vectors through their distributed architecture that separates storage and compute layers.

Source
Zilliz: Is Milvus open-source?

Yes, Milvus is open-source under the Apache License 2.0 and is part of the LF AI & Data Foundation.

Source
Zilliz: What pricing does Zilliz Cloud offer?

Zilliz Cloud pricing is not publicly listed and requires contacting their team to discuss your specific scale and use case requirements.

Source
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