# Faiss vs Infinity

**Leader by Vioscale score:** Faiss

| Attribute | Faiss | Infinity |
|---|---|---|
| **Vioscale score** | 62 (36% (low)) | 49.4 (46% (low)) |
| activity.commits_last_30d | 47 | 7 |
| adoption.dependent_repos | 5,592 | 0 |
| adoption.github_stars | 40,809 | 4,683 |
| deployment.options | `{"self_hosted":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. | An AI-native database built for language model applications, offering rapid hybrid search across dense vectors, sparse vectors, tensors, and full-text data. It features a single-binary architecture deployable via Docker or binary without external dependencies, with a Python API for developer convenience. |
| 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":"self_hosted","serverless":false,"storage_tier":"disk_backed","hybrid_search":true,"licence_class":"permissive_oss","multi_tenancy":true,"product_class":"dedicated_dbms","full_text_bm25":true,"distance_metrics":"inner product","horizontal_scale":"single_node"}` |
| language.primary | C++ | C++ |
| license.spdx | MIT | Apache-2.0 |
| platform.support | `{"mac":true,"linux":true,"windows":true}` | `{"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://faiss.ai","retrievedAt":"2026-08-13T20:46:34.341Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://infiniflow.org","retrievedAt":"2026-08-16T21:36:46.364Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| release.cadence_days | 83 | 5 |
| 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/infiniflow/infinity/releases/tag/nightly","date":"2026-01-20T14:01:49Z","type":"prerelease","version":"nightly"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.3","date":"2026-08-06T04:35:14Z","type":"stable","version":"v0.7.3"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.2","date":"2026-07-15T09:24:40Z","type":"stable","version":"v0.7.2"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.1","date":"2026-07-13T03:09:40Z","type":"stable","version":"v0.7.1"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0","date":"2026-05-15T11:58:34Z","type":"stable","version":"v0.7.0"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0-dev7","date":"2026-05-13T10:26:15Z","type":"stable","version":"v0.7.0-dev7"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0-dev6","date":"2026-05-06T15:18:30Z","type":"stable","version":"v0.7.0-dev6"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0-dev5","date":"2026-03-27T11:44:37Z","type":"stable","version":"v0.7.0-dev5"},{"url":"https://github.com/infiniflow/infinity/releases/tag/nightly-arm64","date":"2026-03-23T13:41:28Z","type":"prerelease","version":"nightly-arm64"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0-dev3","date":"2026-02-27T06:55:24Z","type":"stable","version":"v0.7.0-dev3"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0-dev2","date":"2026-01-26T09:04:01Z","type":"stable","version":"v0.7.0-dev2"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.7.0-dev1","date":"2026-01-16T11:38:01Z","type":"stable","version":"v0.7.0-dev1"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.15","date":"2025-12-27T10:11:09Z","type":"stable","version":"v0.6.15"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.14","date":"2025-12-26T10:59:27Z","type":"stable","version":"v0.6.14"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.13","date":"2025-12-24T09:15:04Z","type":"stable","version":"v0.6.13"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.12","date":"2025-12-15T02:06:59Z","type":"stable","version":"v0.6.12"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.11","date":"2025-12-08T06:22:50Z","type":"stable","version":"v0.6.11"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.10","date":"2025-12-04T02:43:57Z","type":"stable","version":"v0.6.10"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.9","date":"2025-12-03T09:42:51Z","type":"stable","version":"v0.6.9"},{"url":"https://github.com/infiniflow/infinity/releases/tag/v0.6.8","date":"2025-12-02T05:11:26Z","type":"stable","version":"v0.6.8"}]` |
| reliability.status_page | 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}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Finfiniflow%2Finfinity&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Vector Databases)

| Capability | Faiss | Infinity |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| 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 | inner product |
| **Query** |  |  |
| Metadata filtering | - | - |
| Hybrid search (dense + sparse fusion) | - | ✓ |
| Built-in BM25 / lexical | - | ✓ |
| **Storage** |  |  |
| Quantization | Product | - |
| On-disk vs in-memory | Disk-backed | Disk-backed |
| **Scale** |  |  |
| Multi-tenancy (namespaces / collections / tenants) | - | ✓ |
| Horizontal scale | Single-node | Single-node |
| **Consistency** |  |  |
| Consistency | - | - |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Permissive OSS |
| **Classification** |  |  |
| Purpose-built vs feature-of-parent | Extension | Dedicated DBMS |

*Source: Vioscale. Generated 2026-09-01T16:44:41.369Z. "-" = undocumented, not absent.*