# Faiss vs Qdrant

| Attribute | Faiss | Qdrant |
|---|---|---|
| **vioscaleAI score** | 57 (35% (low)) | 55.8 (65% (medium)) |
| activity.commits_last_30d | 66 | 100 |
| adoption.dependent_repos | 5,592 | 0 |
| adoption.github_stars | 41,146 | 35,060 |
| content.faq | `[{"answer":"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. It is indexed under Vector Databases.","source":"https://faiss.ai","question":"What is Faiss?","confidence":0.6},{"answer":"Faiss is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://faiss.ai","question":"Is Faiss free to use?","confidence":0.6},{"answer":"Faiss supports Windows, macOS and Linux. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://faiss.ai","question":"What platforms does Faiss support?","confidence":0.6},{"answer":"Yes. Faiss can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://faiss.ai","question":"Can Faiss be self-hosted?","confidence":0.6},{"answer":"Yes. Faiss is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/facebookresearch/faiss","question":"Is Faiss open source?","confidence":0.95}]` | `[{"answer":"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. It is indexed under Vector Databases.","source":"https://qdrant.tech/documentation/cloud-pricing-payments/","question":"What is Qdrant?","confidence":0.6},{"answer":"Qdrant offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://qdrant.tech/documentation/cloud-pricing-payments/","question":"Is Qdrant free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Qdrant. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://qdrant.tech/documentation/cloud-pricing-payments/","question":"What platforms does Qdrant support?","confidence":0.6},{"answer":"Yes. Qdrant can be deployed cloud / SaaS, hybrid, on-premise, air-gapped and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://qdrant.tech/documentation/cloud-pricing-payments/","question":"Can Qdrant be self-hosted?","confidence":0.6},{"answer":"We have confirmed 6 integrations for Qdrant, including Slack, Adobe, Hubspot, Arize, Google DeepMind and Qualcomm. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://qdrant.tech","question":"What does Qdrant integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Qdrant. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Qdrant not holding them. Always confirm compliance directly before you rely on it.","source":"https://qdrant.tech","question":"What security certifications does Qdrant have?","confidence":0.48},{"answer":"Yes. Qdrant is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/qdrant/qdrant","question":"Is Qdrant open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"on_prem":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 database system designed for storing and searching vectors with comprehensive filtering capabilities. It provides production-ready APIs and tools for semantic similarity matching and embedding-based 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,"distance_metrics":"dot product","horizontal_scale":"sharded_distributed"}` |
| integrations.count | - | 4 |
| integrations.list | - | `[{"name":"Slack"},{"name":"Adobe"},{"name":"Hubspot"},{"name":"Arize"},{"name":"Google DeepMind"},{"name":"Qualcomm"},{"name":"Cohere","native":true,"category":"embeddings","direction":"bidirectional"},{"name":"AWS","native":true},{"name":"GCP","native":true},{"name":"Azure","native":true},{"name":"LangChain","native":true,"category":"framework"},{"name":"FastEmbed","native":true,"category":"embedding"},{"name":"Google Cloud Storage","native":false,"category":"storage"},{"name":"Azure Blob Storage","native":false,"category":"storage"}]` |
| 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 billed monthly based on CPU, memory, and disk storage consumption. Free tier available.","currency":"USD","freeTier":true,"sourceUrl":"https://qdrant.tech/documentation/cloud-pricing-payments/","retrievedAt":"2026-09-10T21:04:02.653Z","billingPeriods":["month"]}` |
| pricing.free_tier | - | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | free | low |
| pricing.transparent | - | yes |
| release.cadence_days | 83 | 18 |
| release.history | `[{"url":"https://github.com/facebookresearch/faiss/releases/tag/v1.15.1","date":"2026-09-16T19:24:02Z","type":"stable","version":"v1.15.1"},{"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/qdrant/qdrant/releases/tag/v1.19.2","date":"2026-10-05T14:16:50Z","type":"stable","version":"v1.19.2"},{"url":"https://github.com/qdrant/qdrant/releases/tag/v1.19.1","date":"2026-09-04T07:59:14Z","type":"stable","version":"v1.19.1"},{"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"}]` |
| reliability.status_page | yes | - |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | 6.2 | - |
| security.soc2 | - | yes |
| security.trust_center | - | https://qdrant.tech/documentation/security/ |
| 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=nixpkgs&package_name=qdrant&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 | dot product |
| **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: vioscaleAI. Generated 2026-10-16T11:13:06.607Z. "-" = undocumented, not absent.*