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Cloud · head to head

IBM Cloud vs Zilliz

IBM Cloud logo

IBM Cloud

Cloud

Enterprise cloud solutions from a trusted partner

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: IBM Cloud the USD 200 starter cloud credit is valid for 30 days only; Zilliz pricing structure not publicly disclosed, requires sales contact
  • They diverge on capability: IBM Cloud covers Virtual Servers, Zilliz covers Vector indexing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where IBM Cloud and Zilliz differ
AttributeIBM CloudZilliz
Pricing modelusage-basedcontact-sales
PlatformsLinux, Windows, Api, CliCloud, Self-hosted
CategoryCloudDatabases
Founded20132017

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 IBM Cloud

  • Virtual Servers
  • Bare Metal
  • Cloud Foundry
  • Kubernetes
  • Watson AI
  • Blockchain
  • Databases
  • 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.

IBM Cloud

  • Running containerized and VM workloads on IBM's public cloudnot Zilliz
  • Building on Watson APIs and IBM middleware as managed servicesnot Zilliz

Zilliz

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

Where each one falls short

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

IBM Cloud

  • The USD 200 starter cloud credit is valid for 30 days only
  • The larger promotional credits are time boxed: USD 1,000 for Bare Metal Servers for VPC over 120 days, USD 2,500 for Power Virtual Server over 90 days, and USD 5,000 for Backup and Recovery over 90 days
  • The USD 5,000 Backup and Recovery promotion is valid for new clients only and requires a checkout promo code
  • The listed promotions carry an expiry date of 31 December 2026
  • Beyond the free tier the account is pay as you go, so cost tracks usage with no published cap

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

IBM Cloud

Free
  • Lite PlanFree
    • Free services
    • Limited resources
    • 30-day trial
  • Standard PlanFree
    • Pay-as-you-go
    • Enterprise support
    • Advanced services

Zilliz

Free

No published plan breakdown. See the Zilliz review.

Which should you pick?

Choose IBM Cloud if

  • You need virtual servers.
  • You want to start without paying.
  • You work on Linux, Windows, Api, Cli.
  • You also want bare metal.
IBM 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 IBM Cloud or Zilliz better?
Neither clearly leads. IBM 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, IBM Cloud or Zilliz?
IBM Cloud starts at Free and Zilliz at Free.
Does IBM Cloud or Zilliz run on more platforms?
IBM Cloud runs on Linux, Windows, Api, Cli. Zilliz runs on Cloud, Self-hosted.
Can I use IBM Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is IBM Cloud best used for?
IBM Cloud is most often used for running containerized and vm workloads on ibm's public cloud, building on watson apis and ibm middleware as managed services. Of those, running containerized and vm workloads on ibm's public cloud and building on watson apis and ibm middleware as managed services are not what Zilliz is typically brought in for.
What can IBM Cloud do that Zilliz cannot?
IBM Cloud covers Virtual Servers, Bare Metal, Cloud Foundry, Kubernetes. 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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