# Milvus

- **Canonical URI:** https://www.vioscale.ai/software/milvus
- **Category:** Vector Databases
- **Homepage:** https://milvus.io
- **Also known as:** milvus
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-05T13:33:14.283Z

## Vioscale score

**68.2 / 100**, confidence 25% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 45.8 | 0.129 | 5.9 | ✓ |
| github_stars | 87.9 | 0.053 | 4.7 | ✓ |
| integrations | 0 | 0.061 | 0 | - |
| github_activity | 63.1 | 0.152 | 9.6 | ✓ |
| release_cadence | 97.2 | 0.091 | 8.8 | ✓ |
| security_posture | 0 | 0.136 | 0 | - |
| package_downloads | 0 | 0.045 | 0 | - |
| stackoverflow_activity | 0 | 0.152 | 0 | - |

## Pricing

_As of 2026-08-05, [verify at source](https://milvus.io). Independently observed._

Open source · Free tier

> Open-source with optional managed Zilliz Cloud (serverless and dedicated cluster; free trial available)

## About

Milvus is an open-source vector database built for GenAI applications, enabling high-speed similarity search and scaling to tens of billions of vectors with minimal performance loss.

_Independently observed._

## Platform & deployment

- **Platforms:** macOS, Linux, Windows
- **Deployment:** Cloud / SaaS, Hybrid, Self-hosted

## Capabilities

_The capabilities that matter for Vector Databases. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Deployment** | |
| Deployment | Self-hosted |
| **Index** | |
| ANN index (HNSW / IVF / DiskANN / ScaNN / flat) | - |
| Distance metrics (cosine / dot / Euclidean) | - |
| **Query** | |
| Metadata filtering | - |
| Hybrid search (dense + sparse fusion) | ✓ |
| Built-in BM25 / lexical | - |
| **Storage** | |
| Quantization | - |
| **Scale** | |
| Multi-tenancy (namespaces / collections / tenants) | - |
| Horizontal scale | Sharded / distributed |
| **Consistency** | |
| Consistency | - |
| **Deployment** | |
| Serverless / consumption pricing | ✓ |
| **Storage** | |
| On-disk vs in-memory | Disk-backed |
| **Licensing** | |
| Licence class | Permissive OSS |
| **Classification** | |
| Purpose-built vs feature-of-parent | Dedicated DBMS |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 100 | [link](https://github.com/milvus-io/milvus/pulse) | 2026-07-31 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 45,440 | [link](https://github.com/milvus-io/milvus) | 2026-07-31 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Go | [link](https://github.com/milvus-io/milvus) | 2026-07-31 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/milvus-io/milvus) | 2026-07-31 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://milvus.io) | 2026-08-05 | 60% (medium) |
| pricing.model | open_source | [link](https://milvus.io) | 2026-08-05 | 60% (medium) |
| pricing.price_level | free | [link](https://milvus.io) | 2026-08-05 | 60% (medium) |
| pricing.transparent | yes | [link](https://milvus.io) | 2026-08-05 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 5 | [link](https://github.com/milvus-io/milvus/releases) | 2026-07-31 | 70% (medium) |

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*Source: Vioscale (https://www.vioscale.ai/software/milvus). Independent, evidence-based software intelligence. Cite the canonical URI.*