Comparison

Epsilla vs NucliaDB

No leader: the top candidate Epsilla has only 0.29 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Epsilla65
NucliaDB56
Score
vioscaleAI score
Epsilla65 / 100low · 29%
NucliaDB56 / 100medium · 51%
Pricing
Free tier
Epsilla✓
NucliaDB✓
Model
Epsillafreemium
NucliaDBcommercial
Price level
Epsillamid
NucliaDBhigh
Transparent
Epsilla✓
NucliaDB✓
Integrations
Count
Epsilla–
NucliaDB1
Security
Gdpr
Epsilla–
NucliaDB✓
Iso27001
Epsilla–
NucliaDB✓
Soc2
Epsilla–
NucliaDB✓
Reliability
Sla pct
Epsilla99.9
NucliaDB–
Status page
Epsilla✓
NucliaDB–
Content
Faq
Epsilla4 items
NucliaDB5 items

Capabilities

Feature-by-feature on the axes that matter for vector databases. “-” means undocumented, not absent.

Deployment
Deployment
EpsillaManaged
NucliaDBManaged
Serverless / consumption pricing
Epsilla✓
NucliaDB✗
Index
ANN index (HNSW / IVF / DiskANN / ScaNN / flat)
Epsilla-
NucliaDB-
Distance metrics (cosine / dot / Euclidean)
Epsilla-
NucliaDB-
Query
Metadata filtering
Epsilla-
NucliaDB-
Hybrid search (dense + sparse fusion)
Epsilla-
NucliaDB✓
Built-in BM25 / lexical
Epsilla-
NucliaDB-
Storage
Quantization
Epsilla-
NucliaDB-
On-disk vs in-memory
Epsilla-
NucliaDBDisk-backed
Scale
Multi-tenancy (namespaces / collections / tenants)
Epsilla✓
NucliaDB✓
Horizontal scale
Epsilla-
NucliaDBSharded / distributed
Consistency
Consistency
Epsilla-
NucliaDB-
Licensing
Licence class
EpsillaProprietary
NucliaDBProprietary
Classification
Purpose-built vs feature-of-parent
EpsillaFeature of parent
NucliaDBDedicated DBMS

What each one is

The product in its own terms, so the numbers below have context.

Epsilla

A platform that enables teams to build and deploy AI applications by combining language models with searchable knowledge repositories. It simplifies the setup and management of retrieval-augmented generation workflows without requiring technical engineering.

Independently observed

NucliaDB

Progress Agentic RAG is a RAG-as-a-Service platform providing a centralized agentic knowledge layer for building AI experiences with enterprise-scale governance, compliance, and multi-agent capabilities.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Epsilla

from $29/moSubscriptionFree tier

Free tier through $2,499/month. Custom pricing for Enterprise. Metered add-ons $2–39/month.

  • Free TierFree
    • 1 Team Member
    • 1 Project
    • 1 AI Application
    • 1 Knowledge Base
    • 10M Vector Storage
    • +3 more
  • Starter Tier$29/month
    • 2 Team Members
    • 1 Project
    • 5 AI Applications
    • 5 Knowledge Bases
    • 1G Vector Storage
    • +2 more
  • Professional Tier$249/month
    • 20 Team Members
    • 10 Projects
    • 50 AI Applications
    • 50 Knowledge Bases
    • 10G Vector Storage
    • +3 more
  • AI Concierge$2,499/month
    • Everything in Professional
    • Fractional Forward Deployed AI Engineer
    • Done-For-You AI Agent & Workflow Build-Out
    • Domain-to-AI Enablement
    • Weekly Strategy & Review Calls
    • +3 more
  • Enterprise TierContact sales
    • Unlimited Team Members
    • Unlimited Projects
    • Unlimited AI Applications
    • Unlimited Knowledge Bases
    • Unlimited Vector Storage
    • +6 more
as of verify ↗

NucliaDB

from $700/moSubscriptionFree tier14-day trial

From $700/month. 14-day free trial available.

  • Starter$700/month
    • RAG
    • Q&A
    • Community support
  • Pro$1,925/month
    • RAG
    • Q&A
    • AI classification
    • Generative search
    • AI Assistant
    • +2 more
  • EnterpriseContact sales
    • RAG
    • Q&A
    • AI classification
    • Generative search
    • AI Assistant
    • +4 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Epsilla✓
NucliaDB✓
Deployment
Cloud / SaaS
Epsilla✓
NucliaDB✓
Self-hosted
Epsilla✓
NucliaDB✗
On-premise
Epsilla✓
NucliaDB✗
Hybrid
Epsilla✗
NucliaDB✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Epsilla

Not documented yet.

NucliaDB

1 total
  • AWS Marketplace
Independently observed
Still deciding?

Epsilla or NucliaDB: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.