# Faiss vs Marqo

**Leader by Vioscale score:** Faiss

| Attribute | Faiss | Marqo |
|---|---|---|
| **Vioscale score** | 62 (36% (low)) | 32.1 (22% (low)) |
| activity.commits_last_30d | 47 | - |
| adoption.dependent_repos | 5,592 | - |
| adoption.github_stars | 40,809 | - |
| deployment.options | `{"self_hosted":true}` | `{"cloud":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. | AI-native ecommerce search and product discovery platform that leverages semantic search, behavioral data, and personalization to improve product relevance, conversion rates, and average order value for online retail brands. |
| 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"}` | `{"deployment":"managed","serverless":true,"licence_class":"proprietary","multi_tenancy":true,"product_class":"dedicated_dbms","horizontal_scale":"sharded_distributed"}` |
| language.primary | C++ | - |
| license.spdx | MIT | - |
| market.availability | - | `{"hqCountry":"US","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":"quote","sourceUrl":"https://marqo.ai","retrievedAt":"2026-08-13T20:44:47.208Z"}` |
| pricing.model | commercial | quote |
| pricing.price_level | free | unknown |
| pricing.transparent | - | no |
| release.cadence_days | 83 | - |
| 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"}]` | - |
| reliability.status_page | yes | yes |
| security.scorecard | 6.1 | - |
| 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}` | - |

## Capabilities (Vector Databases)

| Capability | Faiss | Marqo |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Self-hosted | Managed |
| Serverless / consumption pricing | ✗ | ✓ |
| **Index** |  |  |
| ANN index (HNSW / IVF / DiskANN / ScaNN / flat) | HNSW, IVF, PQ, multi-index, NSG | - |
| 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 | - |
| On-disk vs in-memory | Disk-backed | - |
| **Scale** |  |  |
| Multi-tenancy (namespaces / collections / tenants) | - | ✓ |
| Horizontal scale | Single-node | Sharded / distributed |
| **Consistency** |  |  |
| Consistency | - | - |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Proprietary |
| **Classification** |  |  |
| Purpose-built vs feature-of-parent | Extension | Dedicated DBMS |

*Source: Vioscale. Generated 2026-09-01T16:58:46.079Z. "-" = undocumented, not absent.*