Vector Databases

Weaviate vs Qdrant

Comparing two leading open-source vector database solutions in 2025 — 10 min read

Our Recommendation

A quick look at which tool fits your needs best

Weaviate

  • GraphQL API flexibility
  • Multi-modal search support
  • Schema-based design

Qdrant

  • Advanced filtering engine
  • Excellent performance
  • Lower resource usage

Quick Decision Guide

Choose Weaviate if you need:

  • GraphQL API for complex queries
  • Multi-modal search capabilities
  • Built-in vectorization modules
  • Schema-based data modeling

Choose Qdrant if you need:

  • Maximum performance efficiency
  • Advanced filtering at scale
  • Lower resource consumption
  • Simpler deployment model

Platform Details

Weaviate

Weaviate B.V.

Strengths

  • GraphQL API flexibility
  • Multi-modal search support
  • Schema-based design
  • Built-in vectorization
  • Module ecosystem

Weaknesses

  • Higher resource usage
  • Complex configuration
  • Steeper learning curve
  • Limited filtering speed

Best For

Multi-modal applicationsGraphQL-first projectsSemantic search platformsKnowledge graphs

Qdrant

Qdrant Solutions GmbH

Strengths

  • Advanced filtering engine
  • Excellent performance
  • Lower resource usage
  • Simple deployment
  • Payload flexibility

Weaknesses

  • No GraphQL support
  • Limited modules
  • Newer ecosystem
  • Less documentation

Best For

High-performance searchComplex filtering needsResource-constrained environmentsStraightforward deployments

Architecture & Design Philosophy

Weaviate Architecture

Schema-First Design

Weaviate uses a schema-based approach with classes and properties, similar to traditional databases but optimized for vectors.

Core Components

  • • GraphQL query engine
  • • HNSW vector index
  • • Module system for extensibility
  • • Built-in vectorizers

Key Insight: Weaviate prioritizes flexibility and features over raw performance.

Qdrant Architecture

Performance-First Design

Qdrant focuses on high-performance vector search with advanced filtering, optimizing every component for speed.

Core Components

  • • Optimized HNSW implementation
  • • Advanced filtering engine
  • • Payload storage system
  • • REST and gRPC APIs

Key Insight: Qdrant optimizes for performance and filtering efficiency.

Performance Deep Dive

Benchmark Results (1M vectors, 768 dimensions)

Weaviate Performance

Index Build Time 12 min
Query Latency 15ms
Filtered Query 25ms
GraphQL Query 20ms
Memory Usage 9GB

Qdrant Performance

Index Build Time 8 min
Query Latency 7ms
Filtered Query 10ms
REST Query 8ms
Memory Usage 5GB

Note: Qdrant is 2-3x faster and uses 40% less memory, but Weaviate offers more features.

Feature-Specific Performance

Filtering Performance

Weaviate

Good filtering with GraphQL flexibility, but slower on complex filters

Qdrant

Excellent filtering performance, optimized for complex boolean queries

Multi-Modal Search

Weaviate

Native support with built-in modules for text, image, and more

Qdrant

Requires manual implementation and multiple collections

Total Cost of Ownership (TCO)

Cost Breakdown for Different Scales

Scale Weaviate Qdrant
Development (100K vectors) $0 (local) $0 (local)
Small (1M vectors) $200/mo $100/mo
Medium (10M vectors) $800/mo $400/mo
Large (100M vectors) $3K/mo $1.5K/mo
Enterprise (1B+ vectors) Weaviate Enterprise Qdrant Cloud

Weaviate Hidden Costs

  • • Higher infrastructure needs
  • • Complex configuration time
  • • Module management overhead

Qdrant Hidden Costs

  • • Custom multi-modal implementation
  • • Less extensive documentation
  • • Smaller ecosystem

💡 Cost Optimization Tips

For Weaviate:

  • • Use Weaviate Cloud for small projects
  • • Disable unused modules
  • • Optimize schema design

For Qdrant:

  • • Use on-disk storage when possible
  • • Optimize collection parameters
  • • Leverage built-in compression

Developer Experience Comparison

Weaviate DX

Getting Started

, ]
}
client.schema.create_class(schema)

# GraphQL query with filters
result = client.query.get("Product", ["title", "price"]) \
    .with_near_vector() \
    .with_where() \
    .with_limit(10) \
    .do()`}

Pros

  • ✓ Powerful GraphQL API
  • ✓ Built-in modules
  • ✓ Multi-modal support
  • ✓ Rich documentation

Cons

  • ✗ Complex schema setup
  • ✗ Verbose queries
  • ✗ Steeper learning

Qdrant DX

Getting Started

        }]
    },
    limit=10
)`}

Pros

  • ✓ Simple API design
  • ✓ Great performance
  • ✓ Advanced filtering
  • ✓ Lower resources

Cons

  • ✗ No GraphQL
  • ✗ Manual multi-modal
  • ✗ Smaller community

Real-World Use Case Analysis

When Weaviate is the Clear Winner

1. Multi-Modal Search Platform

Content platform with text, images, and videos:

  • • Built-in text2vec modules
  • • Image vectorization support
  • • GraphQL for complex queries

Weaviate's modules make this easy

2. Knowledge Graph Application

Semantic search with relationships:

  • • Schema-based modeling
  • • GraphQL traversal queries
  • • Cross-references support

Perfect fit for Weaviate's design

When Qdrant is the Better Choice

1. High-Performance Search API

Low-latency search service:

  • • Sub-10ms response times
  • • Complex boolean filters
  • • Minimal resource usage

Qdrant's performance wins

2. Resource-Constrained Environment

Edge deployment or limited resources:

  • • 50% less memory usage
  • • Faster indexing times
  • • Simpler deployment

Qdrant's efficiency is key

Migration Strategies

Common Migration Patterns

Weaviate → Qdrant (Performance Optimization)

When you need better performance and filtering:

  1. 1. Export data via Weaviate backup
  2. 2. Map schema to Qdrant collections
  3. 3. Convert GraphQL queries to REST
  4. 4. Implement custom multi-modal logic
  5. 5. Optimize collection parameters

Qdrant → Weaviate (Feature Requirements)

When you need GraphQL or multi-modal features:

  1. 1. Export vectors and payloads
  2. 2. Design Weaviate schema
  3. 3. Configure needed modules
  4. 4. Import data with batch API
  5. 5. Rewrite queries for GraphQL

⚠️ Important: Both use HNSW indexing, making data migration straightforward.

Decision Matrix

Requirement Recommended Reasoning
GraphQL API needed Weaviate Native GraphQL support
Maximum performance Qdrant 2-3x faster queries
Multi-modal search Weaviate Built-in modules
Advanced filtering Qdrant Superior filter performance
Low resource usage Qdrant 40% less memory
Built-in vectorizers Weaviate Module ecosystem
Simple deployment Qdrant Less configuration

The Verdict

Weaviate: The Feature-Rich Platform

Weaviate excels as a comprehensive vector database platform with GraphQL, multi-modal search, and a rich module ecosystem. It's the better choice when you need advanced features and don't mind trading some performance for flexibility.

Bottom Line: Choose Weaviate for feature-rich applications with complex requirements.

Qdrant: The Performance Leader

Qdrant wins on performance, resource efficiency, and filtering capabilities. Its simpler architecture and focused design make it ideal for teams that prioritize speed and efficiency over extensive features.

Bottom Line: Choose Qdrant for high-performance applications with filtering needs.

🎯 Our Recommendation

Both are excellent choices. Choose Weaviate if you need GraphQL, multi-modal search, or built-in vectorization. Choose Qdrant if performance, resource efficiency, and advanced filtering are your priorities. Consider your specific requirements rather than following generic advice.

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