# Faiss vs Qdrant

| Attribute | Faiss | Qdrant |
|---|---|---|
| **Vioscale score** | 62 (36% (low)) | 58.7 (60% (medium)) |
| activity.commits_last_30d | 47 | 100 |
| adoption.dependent_repos | 5,592 | 0 |
| adoption.github_stars | 40,809 | 34,203 |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"hybrid":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` |
| description.long | Faiss is a library for efficient similarity search and clustering of dense vectors. It contains algorithms that search in sets of vectors of any size, up to ones that possibly do not fit in RAM. | A vector database engine that provides fast similarity search over high-dimensional vectors, available in managed cloud, self-hosted open source, and hybrid deployment models for AI applications. |
| features.capabilities | `{"ann_index":"HNSW, IVF, PQ, multi-index, NSG","deployment":"self_hosted","serverless":false,"quantization":"product","storage_tier":"disk_backed","licence_class":"permissive_oss","product_class":"extension","distance_metrics":"Euclidean (L2), inner product, L1, Linf","horizontal_scale":"single_node"}` | `{"ann_index":"HNSW","deployment":"self_hosted","quantization":"scalar","storage_tier":"disk_backed","hybrid_search":true,"licence_class":"source_available","multi_tenancy":true,"product_class":"dedicated_dbms","full_text_bm25":true,"horizontal_scale":"sharded_distributed"}` |
| integrations.count | - | 6 |
| integrations.list | - | `[{"name":"Slack"},{"name":"Adobe"},{"name":"Hubspot"},{"name":"Arize"},{"name":"Google DeepMind"},{"name":"Qualcomm"}]` |
| language.primary | C++ | Rust |
| license.spdx | MIT | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"mac":true,"linux":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://faiss.ai","retrievedAt":"2026-08-13T20:46:34.341Z"}` | `{"type":"usage","summary":"Usage-based pricing on CPU, memory, and disk storage; charged monthly for previous month's usage","currency":"USD","sourceUrl":"https://qdrant.tech/documentation/cloud-pricing-payments/","retrievedAt":"2026-08-14T12:16:09.861Z","billingPeriods":["month"]}` |
| pricing.free_tier | - | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | - | yes |
| release.cadence_days | 83 | 18 |
| release.history | `[{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.15.0","date":"2026-08-03T17:10:58Z","type":"stable","version":"v1.15.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.14.3","date":"2026-06-13T04:03:53Z","type":"stable","version":"v1.14.3"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.14.2","date":"2026-05-22T20:05:00Z","type":"stable","version":"v1.14.2"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.14.1","date":"2026-03-06T17:49:04Z","type":"stable","version":"v1.14.1"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.14.0","date":"2026-03-03T03:19:33Z","type":"stable","version":"v1.14.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.13.2","date":"2025-12-19T23:41:59Z","type":"stable","version":"v1.13.2"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.13.1","date":"2025-12-03T00:02:15Z","type":"stable","version":"v1.13.1"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.13.0","date":"2025-11-12T17:18:44Z","type":"stable","version":"v1.13.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.12.0","date":"2025-08-12T16:46:55Z","type":"stable","version":"v1.12.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.11.0","date":"2025-04-25T14:13:55Z","type":"stable","version":"v1.11.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.10.0","date":"2025-01-31T23:29:10Z","type":"stable","version":"v1.10.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.9.0","date":"2024-10-04T21:33:29Z","type":"stable","version":"v1.9.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.8.0","date":"2024-03-01T01:04:25Z","type":"stable","version":"v1.8.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.7.4","date":"2023-04-20T13:45:29Z","type":"stable","version":"v1.7.4"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.7.3","date":"2022-11-30T15:24:12Z","type":"stable","version":"v1.7.3"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.7.2","date":"2022-01-10T12:19:49Z","type":"stable","version":"v1.7.2"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.7.1","date":"2021-05-28T09:08:34Z","type":"stable","version":"v1.7.1"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.7.0","date":"2021-02-13T14:11:25Z","type":"stable","version":"v1.7.0"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.6.5","date":"2020-12-21T05:24:03Z","type":"stable","version":"v1.6.5"},{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.6.4","date":"2020-10-22T13:28:27Z","type":"stable","version":"v1.6.4"}]` | `[{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.19.0","date":"2026-08-05T11:26:05Z","type":"stable","version":"v1.19.0"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.18.3","date":"2026-07-17T13:18:39Z","type":"stable","version":"v1.18.3"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.18.2","date":"2026-06-04T06:50:36Z","type":"stable","version":"v1.18.2"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.18.1","date":"2026-05-22T12:31:50Z","type":"stable","version":"v1.18.1"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.18.0","date":"2026-05-11T15:04:38Z","type":"stable","version":"v1.18.0"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.17.1","date":"2026-03-27T08:37:25Z","type":"stable","version":"v1.17.1"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.17.0","date":"2026-02-20T11:11:50Z","type":"stable","version":"v1.17.0"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.16.3","date":"2025-12-19T17:45:42Z","type":"stable","version":"v1.16.3"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.16.2","date":"2025-12-04T11:03:49Z","type":"stable","version":"v1.16.2"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.16.1","date":"2025-11-25T17:16:19Z","type":"stable","version":"v1.16.1"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.16.0","date":"2025-11-17T14:32:11Z","type":"stable","version":"v1.16.0"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.15.5","date":"2025-09-30T12:23:50Z","type":"stable","version":"v1.15.5"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.15.4","date":"2025-08-27T11:24:04Z","type":"stable","version":"v1.15.4"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.15.3","date":"2025-08-14T16:30:06Z","type":"stable","version":"v1.15.3"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.15.2","date":"2025-08-11T18:04:43Z","type":"stable","version":"v1.15.2"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.15.1","date":"2025-07-24T10:18:56Z","type":"stable","version":"v1.15.1"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.15.0","date":"2025-07-18T13:08:28Z","type":"stable","version":"v1.15.0"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.14.1","date":"2025-05-23T13:09:01Z","type":"stable","version":"v1.14.1"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.14.0","date":"2025-04-22T16:34:34Z","type":"stable","version":"v1.14.0"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.13.6","date":"2025-03-31T23:28:22Z","type":"stable","version":"v1.13.6"}]` |
| reliability.status_page | yes | - |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | 6.1 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=faiss-cpu&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=cowboysysop%2Fqdrant&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Vector Databases)

| Capability | Faiss | Qdrant |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| Serverless / consumption pricing | ✗ | - |
| **Index** |  |  |
| ANN index (HNSW / IVF / DiskANN / ScaNN / flat) | HNSW, IVF, PQ, multi-index, NSG | HNSW |
| Distance metrics (cosine / dot / Euclidean) | Euclidean (L2), inner product, L1, Linf | - |
| **Query** |  |  |
| Metadata filtering | - | - |
| Hybrid search (dense + sparse fusion) | - | ✓ |
| Built-in BM25 / lexical | - | ✓ |
| **Storage** |  |  |
| Quantization | Product | Scalar |
| On-disk vs in-memory | Disk-backed | Disk-backed |
| **Scale** |  |  |
| Multi-tenancy (namespaces / collections / tenants) | - | ✓ |
| Horizontal scale | Single-node | Sharded / distributed |
| **Consistency** |  |  |
| Consistency | - | - |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Source-available |
| **Classification** |  |  |
| Purpose-built vs feature-of-parent | Extension | Dedicated DBMS |

*Source: Vioscale. Generated 2026-09-01T14:39:41.586Z. "-" = undocumented, not absent.*