Zilliz vs MongoDB Atlas Vector Search: Vector Databases Pricing (2026)
Compare / Zilliz vs MongoDB Atlas Vector Search
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Team size
25 seats

Zilliz vs MongoDB Atlas Vector Search

Vector Databases pricing comparison · 2026

Zilliz has a free plan, then $126–$197/mo, while MongoDB Atlas Vector Search is usage-based from $0.011 per hour. MongoDB Atlas Vector Search is typically 82% more affordable, though your actual cost depends on tier and team size.

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See pricing on each vendor's site
Above-the-fold path — each link opens the vendor's pricing page in a new tab.
Visit Zilliz pricing
Free plan limits → Discount programs →
Visit MongoDB pricing
Free plan limits → Discount programs →
Compare
2 products · Vector Databases
Side-by-side · live
Zilliz
Zilliz Cloud is the fully managed vector database built on open-source Milvus, operated by
verified today
View pricing →
MongoDB Atlas Vector Search
MongoDB Atlas Vector Search pricing starts at $0/month on the M0 Free tier, which provides
verified 10w ago
View pricing →
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Enterprise (Dedicated)
$2.4K/yr
year 1 license · flat plan price
Usage-based
$0.011 per hour
see vendor pricing for volume tiers
REF · 01

Sources & confidence

Every dollar amount and contract clause below traces back to a sourced fact. We don't manufacture composite scores.

Where this data comes from
Vendr · TrustRadius · Reddit · BBB · official docs
Sources 25 sourced facts
23 hidden-cost · 1 contract · 1 review platform
Last verified today
Confidence Medium confidence
Sources 11 sourced facts
8 hidden-cost · 2 contract · 1 review platform
Last verified 2mo ago
Confidence Medium confidence
REF · 02

Plans at a glance

Every tier per product. Lock one to drive the cost row above and reveal a tier-specific outbound CTA.

Tier ladder
Click a tier to lock the cost row to it. Locking surfaces a tier-specific Visit CTA.
REF · 03

Hidden costs

Each cost is severity-ranked, with the dollar range quoted from its source (Vendr, Reddit, TrustRadius, BBB, official docs) — never our estimate.

Beyond the sticker
Severity-ranked, sourced
5 documented
  • Storage Minimums & Suspended Charges
    1 source
  • Idle Compute Charges
    ~$7,000/month
    1 source
  • Data Transfer Fees
    1 source
  • Audit Log Resource Consumption
    1 source
  • Embedding & Inference Fees
    1 source
5 documented
  • Unpredictable Scaling Costs
    5-15% of license costs
    2 sources
  • Dedicated Cluster Cost Cliff
    $600-$700/month
    1 source
  • Developer Support Subscription Continues After Cluster Deletion
    $5/month
    1 source
  • Paid Technical Support Required for Complex Issues
    5-15% of license costs
    2 sources
  • Forced Version Upgrades May Require More Expensive Cluster Tiers
    $56.94/month
    2 sources
REF · 04

Contract terms

The fine print, surfaced. Green = buyer-friendly. Each clause backed by a quoted source.

Zilliz
MongoDB
Auto-renewal
—
Yes
Cancellation
any time for pay-as-you-go via AWS Marketplace
—
Commitment
Free tier offers 5 GB storage, 2.5 million vCUs per month, and up to 5 collections; Serverless and Dedicated models are pay-as-you-go.
—
Price escalation
—
—
Can downgrade
—
—
Based on 3 verified sources (Vendr · TrustRadius · BBB)
REF · 05

What users say

Aggregated, with sample sizes. We use whichever review platform has data.

User reviews
TrustRadius · Trustpilot · G2
G2
4.7out of 5 (65)
Best for
Learning and personal projects
Watch out
Pricing: Some users find the pricing to be high, especially for extensive storage needs or for smaller projects and individual developers.
Trustpilot
1.1out of 5 (11)
Best for
Learning and exploring MongoDB in a cloud environment
Watch out
Poor and unresponsive customer support during critical outages, limited to documentation links
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
Visit Zilliz pricing
Free plan limits → Discount programs →
Visit MongoDB pricing
Free plan limits → Discount programs →
License cost is computed from publicly listed plans (real math, list price × seats). Median annual cost is from Vendr's deal flow when available — see source badges. Hidden costs and contract terms each cite their own sources. We do not invent composite scores.
Vector Databases

Zilliz

Free plan; paid $126–$197
/mo
5 plans · Free tier
Full pricing breakdown →
VS
Vector Databases

MongoDB Atlas Vector Search

Free tier; usage-based, from $0.011 per hour
3 plans · Free tier
Full pricing breakdown →

Zilliz and MongoDB Atlas Vector Search are both vector databases competitors. This page compares their list pricing tier by tier so you can see which is cheaper for your workload shape.

Plan-by-Plan Pricing

Plan Zilliz MongoDB Atlas Vector Search
Free Free /month Free /hour
Standard (Serverless) Free /month $8 /hour
Standard (Dedicated) $126 /month $56.94 /hour
Enterprise (Dedicated) $197 /month —
Business Critical Custom —

What Users Say

Zilliz

G2
4.7out of 5 (65)
Top complaints
  • Pricing: Some users find the pricing to be high, especially for extensive storage needs or for smaller projects and individual developers.
  • Deployment Dependencies: The standalone deployment of Zilliz is noted to have a few too many dependencies.
  • Schema Migration Complexity: Modifying collection schemas can involve a complex and time-consuming migration process.

MongoDB Atlas Vector Search

Trustpilot
1.1out of 5 (11)
Top complaints
  • Poor and unresponsive customer support during critical outages, limited to documentation links
  • Data loss and prolonged inaccessibility during regional AWS outages due to same-region backup defaults
  • Complicated multi-step account cancellation process spanning 72+ hours with time-sensitive codes

Hidden Costs

Beyond the sticker price — what catches buyers off guard.

Zilliz 23 hidden costs

medium
Storage Minimums & Suspended Charges
high
Idle Compute Charges ~$7,000/month
medium
Data Transfer Fees
low
Audit Log Resource Consumption
critical
Embedding & Inference Fees
See all Zilliz hidden costs →

MongoDB Atlas Vector Search 5 hidden costs

medium
Unpredictable Scaling Costs 5-15% of license costs
high
Dedicated Cluster Cost Cliff
medium
Developer Support Subscription Continues After Cluster Deletion $5/month
high
Paid Technical Support Required for Complex Issues 5-15% of license costs
high
Forced Version Upgrades May Require More Expensive Cluster Tiers $56.94/month
See all MongoDB Atlas Vector Search hidden costs →

Contract Terms

Term Zilliz MongoDB Atlas Vector Search
Auto-renewal — Yes
Cancellation any time for pay-as-you-go via AWS Marketplace —
Minimum commitment Free tier offers 5 GB storage, 2.5 million vCUs per month, and up to 5 collections; Serverless and Dedicated models are pay-as-you-go. —

Continue researching

Zilliz

MongoDB Atlas Vector Search

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