WorkflowsApr 8, 2026·2 min read

Qdrant — Vector Search Engine for AI Applications

High-performance open-source vector database for AI search and RAG. Qdrant offers advanced filtering, quantization, distributed deployment, and a rich Python/JS SDK.

AI
AI Open Source · Community
Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

# Docker (recommended)
docker run -p 6333:6333 qdrant/qdrant

# Or pip for embedded mode
pip install qdrant-client
from qdrant_client import QdrantClient
from qdrant_client.models import Distance, VectorParams, PointStruct

client = QdrantClient("localhost", port=6333)

# Create collection
client.create_collection(
    collection_name="docs",
    vectors_config=VectorParams(size=1536, distance=Distance.COSINE),
)

# Insert vectors
client.upsert(
    collection_name="docs",
    points=[
        PointStruct(id=1, vector=[0.1, 0.2, ...], payload={"title": "Doc A"}),
        PointStruct(id=2, vector=[0.3, 0.4, ...], payload={"title": "Doc B"}),
    ],
)

# Search
results = client.query_points(
    collection_name="docs",
    query=[0.15, 0.25, ...],
    limit=5,
)

What is Qdrant?

Qdrant (read: "quadrant") is a high-performance open-source vector database written in Rust. It is purpose-built for AI applications — semantic search, RAG pipelines, recommendation systems, and anomaly detection. Qdrant stands out with its advanced payload filtering, multiple quantization options, and production-ready distributed mode.

Answer-Ready: Qdrant is a Rust-based open-source vector database for AI search. Advanced payload filtering, scalar/binary/product quantization, distributed deployment, and rich SDKs. Used by major AI companies for production RAG. Qdrant Cloud for managed hosting. 22k+ GitHub stars.

Best for: AI teams building production search and RAG systems. Works with: OpenAI, Cohere, HuggingFace embeddings, LangChain, LlamaIndex. Setup time: Under 2 minutes.

Core Features

1. Advanced Filtering

from qdrant_client.models import Filter, FieldCondition, MatchValue

results = client.query_points(
    collection_name="docs",
    query=[0.15, 0.25, ...],
    query_filter=Filter(
        must=[
            FieldCondition(key="category", match=MatchValue(value="ai")),
            FieldCondition(key="year", range={"gte": 2024}),
        ]
    ),
    limit=10,
)

2. Quantization (Memory Savings)

Method Memory Accuracy Speed
None (float32) 100% 100% Baseline
Scalar (int8) 25% 99%+ Faster
Binary 3% 95%+ Fastest
Product 5-10% 97%+ Fast

3. Sparse Vectors (Hybrid Search)

from qdrant_client.models import SparseVector

# Combine dense + sparse for hybrid search
client.upsert(
    collection_name="docs",
    points=[PointStruct(
        id=1,
        vector={"dense": [0.1, 0.2, ...], "sparse": SparseVector(indices=[1, 5, 100], values=[0.5, 0.3, 0.8])},
        payload={"title": "Doc A"},
    )],
)

4. Distributed Mode

# Multi-node cluster
storage:
  shard_number: 6
  replication_factor: 2

5. Multiple SDKs

Language Package
Python qdrant-client
JavaScript @qdrant/js-client-rest
Rust qdrant-client
Go go.qdrant.io/client
Java io.qdrant:client

Qdrant vs Alternatives

Feature Qdrant Pinecone Weaviate Milvus
Open source Yes No Yes Yes
Language Rust - Go Go/C++
Filtering Advanced Basic GraphQL Basic
Quantization 3 methods Limited Limited Yes
Managed cloud Yes Yes Yes Yes

FAQ

Q: How does it scale? A: Distributed mode with sharding and replication. Handles billions of vectors across multiple nodes.

Q: Is there a managed version? A: Yes, Qdrant Cloud offers managed hosting with a free tier (1GB).

Q: Can I run it embedded (no server)? A: Yes, QdrantClient(":memory:") or QdrantClient(path="./db") for local file storage.

🙏

Source & Thanks

Created by Qdrant. Licensed under Apache 2.0.

qdrant/qdrant — 22k+ stars

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