Marqo vs Weaviate: Vector Databases Comparison (2026)

Marqo focuses on discovery, multimodal capabilities, scalability, and rapid impact. Weaviate offers a free tier with specific limits and a pay-as-you-go model.

AI Citation Scorecard

How often each is cited by major AI engines when buyers ask vector databases questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.

Weaviate leads overall — 100% cited vs Marqo 0% across 12 probes.
ChatGPT
Marqo
0 / 1 probes
0%
Invisible
WeaviateLeads
1 / 1 probes
100%
Excellent
Perplexity
Marqo
0 / 2 probes
0%
Invisible
WeaviateLeads
2 / 2 probes
100%
Excellent
Gemini
Marqo
0 / 1 probes
0%
Invisible
WeaviateLeads
1 / 1 probes
100%
Excellent
Claude
Marqo
0 / 1 probes
0%
Invisible
WeaviateLeads
1 / 1 probes
100%
Excellent
Copilot
Marqo
0 / 1 probes
0%
Invisible
WeaviateLeads
1 / 1 probes
100%
Excellent
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

Marqo
Starting price
—
Free tier
—
marqo.ai ↗
Weaviate
Starting price
$0/mo
Free tier
Yes
weaviate.io ↗

Key Features

Marqo
  • ✓Purpose built for discovery
  • ✓Multimodal by default
  • ✓Built for scale
  • ✓Accelerated time to impact
Weaviate
  • ✓Always free — 1 cluster per user
  • ✓100,000 objects, 1 GB memory
  • ✓1 collection, up to 3 tenants
  • ✓Embeddings & Query Agent included

When to choose Marqo

You require a vector database specifically designed for discovery, multimodal data handling, and rapid deployment for measurable ROI.

When to choose Weaviate

You are looking for a vector database with a free tier to get started, with defined limits on objects, memory, collections, and tenants, and prefer a pay-as-you-go pricing model.

Frequently Asked Questions

What are the key features of Marqo?
Marqo's key features include being purpose-built for discovery, multimodal capability by default, built for scale, and accelerated time to impact.
What are the key features of Weaviate?
Weaviate's key features include an always-free tier (1 cluster per user), a limit of 100,000 objects and 1 GB memory on the free tier, 1 collection and up to 3 tenants, and included Embeddings & Query Agent.
Does Marqo offer a free tier?
Information about a free tier for Marqo is not available.
Does Weaviate offer a free tier?
Yes, Weaviate offers a free tier that includes 1 cluster per user, 100,000 objects, 1 GB memory, 1 collection, and up to 3 tenants.
What are the pricing details for Marqo?
Marqo's starting price is not available.

AI visibility profiles

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Marqo

marqo.ai

Weaviate

weaviate.io

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