# Chroma vs Faiss

**Leader by Vioscale score:** Chroma

| Attribute | Chroma | Faiss |
|---|---|---|
| **Vioscale score** | 67.6 (70% (medium)) | 62 (36% (low)) |
| activity.commits_last_30d | 81 | 47 |
| adoption.dependent_repos | 6,246 | 5,592 |
| adoption.github_stars | 29,148 | 40,809 |
| adoption.package_downloads_weekly | 2,592,643 | - |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A search system enabling simultaneous vector similarity, full-text, and structured metadata queries across large datasets. Deployable as open-source self-hosted infrastructure or managed cloud service with usage-based pricing, supporting multi-tenant workloads and distributed scaling. | 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. |
| features.capabilities | `{"deployment":"self_hosted","serverless":true,"storage_tier":"tiered","hybrid_search":true,"licence_class":"permissive_oss","multi_tenancy":true,"product_class":"dedicated_dbms","full_text_bm25":true,"horizontal_scale":"sharded_distributed","metadata_filtering":"pre_filter"}` | `{"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"}` |
| language.primary | Rust | C++ |
| license.spdx | Apache-2.0 | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Starter","summary":"Free tier plus metered charges for write, storage, query, and network","features":["10 databases","10 team members","Community Slack"],"commitment":"monthly","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":2.5,"currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.33,"currency":"USD"},{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":0.0075,"currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.09,"currency":"USD"}],"description":"Get up and running quickly with free credits then usage-based pricing","contactSales":false,"includedLimits":{"databases":"10","free_credits":"$5","team_members":"10"}},{"free":false,"name":"Team","summary":"$250/month with $100 included credits, plus overage metering","features":["100 databases","30 team members","Slack support","SOC II compliance","Volume-based discounts"],"commitment":"monthly","components":[{"kind":"fixed","amount":250,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":2.5,"currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.33,"currency":"USD"},{"per":{"qty":1,"unit":"TiB"},"kind":"metered","amount":0.0075,"currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.09,"currency":"USD"}],"description":"Scale production workloads with included credits and priority support","contactSales":false,"includedLimits":{"databases":"100","team_members":"30","monthly_credits":"$100"}},{"free":false,"name":"Enterprise","summary":"Custom pricing negotiated per deployment","features":["Unlimited databases","Unlimited team members","Dedicated support","Single tenant clusters","BYOC clusters","SLAs"],"description":"Security, scale, and dedicated support for organizations with custom requirements","contactSales":true}],"summary":"Freemium model with usage-based metering. Starter plan free with $5 credits; Team plan $250/month plus metered charges with $100 included credits; Enterprise with custom pricing.","currency":"USD","freeTier":true,"sourceUrl":"https://www.trychroma.com/pricing","retrievedAt":"2026-08-14T11:06:40.719Z","startingPrice":{"amount":0.0075,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","sourceUrl":"https://faiss.ai","retrievedAt":"2026-08-13T20:46:34.341Z"}` |
| pricing.free_tier | yes | - |
| pricing.model | commercial | commercial |
| pricing.price_level | low | free |
| pricing.transparent | yes | - |
| release.cadence_days | 4 | 83 |
| release.history | `[{"url":"https://github.com/chroma-core/chroma/releases/tag/latest","date":"2025-04-01T23:29:39Z","type":"prerelease","version":"latest"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.9","date":"2026-05-05T05:55:40Z","type":"stable","version":"1.5.9"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.4.4","date":"2026-05-05T04:47:11Z","type":"stable","version":"cli-1.4.4"},{"url":"https://github.com/chroma-core/chroma/releases/tag/foundation-cli-v0.1.0-alpha.3","date":"2026-05-01T00:44:16Z","type":"prerelease","version":"foundation-cli-v0.1.0-alpha.3"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.8","date":"2026-04-16T23:35:52Z","type":"stable","version":"1.5.8"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.7","date":"2026-04-08T07:49:29Z","type":"stable","version":"1.5.7"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.4.3","date":"2026-04-08T04:25:36Z","type":"stable","version":"cli-1.4.3"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.6","date":"2026-04-07T03:01:03Z","type":"stable","version":"1.5.6"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.4.2","date":"2026-04-04T15:46:18Z","type":"stable","version":"cli-1.4.2"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.5","date":"2026-03-10T09:30:59Z","type":"stable","version":"1.5.5"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.3","date":"2026-03-07T19:07:43Z","type":"stable","version":"1.5.3"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.2","date":"2026-02-27T19:50:12Z","type":"stable","version":"1.5.2"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.1","date":"2026-02-19T20:01:23Z","type":"stable","version":"1.5.1"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.4.1","date":"2026-02-19T19:30:48Z","type":"stable","version":"cli-1.4.1"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.5.0","date":"2026-02-09T08:47:05Z","type":"stable","version":"1.5.0"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.4.0","date":"2026-02-09T05:36:21Z","type":"stable","version":"cli-1.4.0"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.4.1","date":"2026-01-14T19:19:18Z","type":"stable","version":"1.4.1"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.3.1","date":"2026-01-13T21:17:59Z","type":"stable","version":"cli-1.3.1"},{"url":"https://github.com/chroma-core/chroma/releases/tag/1.4.0","date":"2025-12-24T02:59:03Z","type":"stable","version":"1.4.0"},{"url":"https://github.com/chroma-core/chroma/releases/tag/cli-1.3.0","date":"2025-12-24T01:22:45Z","type":"stable","version":"cli-1.3.0"}]` | `[{"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.gdpr | yes | - |
| security.scorecard | 5.1 | 6.1 |
| security.soc2 | yes | - |
| security.vulnerabilities | `{"count":4,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=chromadb&per_page=100","last_12m":4,"max_severity":"CRITICAL"}` | `{"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 | Chroma | Faiss |
|---|:--:|:--:|
| **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 |
| **Query** |  |  |
| Metadata filtering | Pre-filter | - |
| Hybrid search (dense + sparse fusion) | ✓ | - |
| Built-in BM25 / lexical | ✓ | - |
| **Storage** |  |  |
| Quantization | - | Product |
| On-disk vs in-memory | Tiered | Disk-backed |
| **Scale** |  |  |
| Multi-tenancy (namespaces / collections / tenants) | ✓ | - |
| Horizontal scale | Sharded / distributed | Single-node |
| **Consistency** |  |  |
| Consistency | - | - |
| **Licensing** |  |  |
| Licence class | Permissive OSS | Permissive OSS |
| **Classification** |  |  |
| Purpose-built vs feature-of-parent | Dedicated DBMS | Extension |

*Source: Vioscale. Generated 2026-09-01T17:15:49.228Z. "-" = undocumented, not absent.*