# Epsilla vs Milvus

| Attribute | Epsilla | Milvus |
|---|---|---|
| **vioscaleAI score** | 65.3 (30% (low)) | 58 (57% (medium)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 7 |
| adoption.github_stars | - | 46,047 |
| content.faq | `[{"answer":"A platform that simplifies building AI agents and knowledge-base systems for teams of any technical level. It provides enterprise-grade multi-tenancy and supports flexible deployment modes including cloud, on-premise, and private cloud. It is indexed under Vector Databases.","source":"https://epsilla.com","question":"What is Epsilla?","confidence":0.6},{"answer":"Epsilla offers a free tier, so you can start without paying. Paid plans start at $29 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://epsilla.com","question":"Is Epsilla free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Epsilla. 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://epsilla.com","question":"What platforms does Epsilla support?","confidence":0.6},{"answer":"Yes. Epsilla can be deployed cloud / SaaS, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://epsilla.com","question":"Can Epsilla be self-hosted?","confidence":0.6}]` | `[{"answer":"A distributed database system for storing and searching high-dimensional vectors at scale. Supports multiple deployment models from local notebooks to cloud-managed services, with capabilities for hybrid search combining dense and sparse embeddings. It is indexed under Vector Databases.","source":"https://milvus.io","question":"What is Milvus?","confidence":0.6},{"answer":"Milvus offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://milvus.io","question":"Is Milvus free?","confidence":0.6},{"answer":"Milvus supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://milvus.io","question":"What platforms does Milvus support?","confidence":0.6},{"answer":"Yes. Milvus can be deployed cloud / SaaS, hybrid and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://milvus.io","question":"Can Milvus be self-hosted?","confidence":0.6},{"answer":"We have confirmed 7 integrations for Milvus, including OpenAI, Sentence Transformers, BGE-M3, SPLADE, Jina AI, BM25 and PyMilvus. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://milvus.io","question":"What does Milvus integrate with?","confidence":0.6},{"answer":"Yes. Milvus 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/milvus-io/milvus","question":"Is Milvus open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A platform that simplifies building AI agents and knowledge-base systems for teams of any technical level. It provides enterprise-grade multi-tenancy and supports flexible deployment modes including cloud, on-premise, and private cloud. | A high-performance, distributed vector database that enables fast similarity search across billions of high-dimensional vectors, supporting real-time updates, flexible metadata filtering, and hybrid search capabilities for AI and machine learning applications. |
| features.capabilities | `{"deployment":"managed","serverless":true,"licence_class":"proprietary","multi_tenancy":true,"product_class":"parent_feature"}` | `{"ann_index":"HNSW, IVF, FLAT, SCANN, DiskANN, GPU_CAGRA","deployment":"self_hosted","serverless":true,"consistency":"eventual","quantization":"product","storage_tier":"disk_backed","hybrid_search":true,"licence_class":"permissive_oss","multi_tenancy":true,"product_class":"dedicated_dbms","full_text_bm25":true,"distance_metrics":"cosine, Euclidean, dot product","horizontal_scale":"sharded_distributed","metadata_filtering":"pre_filter"}` |
| integrations.count | - | 7 |
| integrations.list | - | `[{"name":"OpenAI"},{"name":"Sentence Transformers"},{"name":"BGE-M3"},{"name":"SPLADE"},{"name":"Jina AI"},{"name":"BM25"},{"name":"PyMilvus"},{"name":"Jina","category":"reranking"}]` |
| language.primary | - | Go |
| license.spdx | - | Apache-2.0 |
| platform.support | `{"web":true}` | `{"cli":true,"linux":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free Tier","summary":"Free","features":["1 Team Member","1 Project","1 AI Application","1 Knowledge Base","10M Vector Storage","50 Messages/Month (Powered by GPT-4.1)","Community Support","Data Cleared after 30 Days of Inactivity"],"minSeats":1,"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"messages":"50/month","projects":"1","team_members":"1","vector_storage":"10M","ai_applications":"1","knowledge_bases":"1"}},{"free":false,"name":"Starter Tier","summary":"$29/month","features":["2 Team Members","1 Project","5 AI Applications","5 Knowledge Bases","1G Vector Storage","500 Messages/Month (Powered by GPT-4.1)","Email Support"],"minSeats":2,"commitment":"monthly","components":[{"kind":"fixed","amount":29,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"messages":"500/month","projects":"1","team_members":"2","vector_storage":"1G","ai_applications":"5","knowledge_bases":"5"}},{"free":false,"name":"Professional Tier","summary":"$249/month","features":["20 Team Members","10 Projects","50 AI Applications","50 Knowledge Bases","10G Vector Storage","5000 Messages/Month (Powered by GPT-4.1)","Dedicated Support Channel","AI Concierge"],"minSeats":20,"commitment":"monthly","components":[{"kind":"fixed","amount":249,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"messages":"5000/month","projects":"10","team_members":"20","vector_storage":"10G","ai_applications":"50","knowledge_bases":"50"}},{"free":false,"name":"AI Concierge","summary":"$2,499/month","features":["Everything in Professional","Fractional Forward Deployed AI Engineer","Done-For-You AI Agent & Workflow Build-Out","Domain-to-AI Enablement","Weekly Strategy & Review Calls","Custom Integration Support","Priority Support Channel","Ongoing Optimization"],"commitment":"monthly","components":[{"kind":"fixed","amount":2499,"period":"month","currency":"USD"}],"description":"Includes fractional forward deployed AI engineer from Epsilla team","contactSales":false},{"free":false,"name":"Enterprise Tier","summary":"Custom pricing","features":["Unlimited Team Members","Unlimited Projects","Unlimited AI Applications","Unlimited Knowledge Bases","Unlimited Vector Storage","Unlimited Messages/Month (any LLM Provider)","Extensive White-Labeling","SSO (SAML and OIDC)","On-Prem Deployment Options","Consulting and Customization","Premium Support with SLAs"],"contactSales":true,"includedLimits":{"messages":"Unlimited","projects":"Unlimited","team_members":"Unlimited","vector_storage":"Unlimited","ai_applications":"Unlimited","knowledge_bases":"Unlimited"}}],"addOns":[{"name":"Team Member","components":[{"kind":"per_unit","unit":"seat","amount":12,"period":"month","currency":"USD"}]},{"name":"AI Application","components":[{"kind":"per_unit","unit":"application","amount":2,"period":"month","currency":"USD"}]},{"name":"Knowledge Base","components":[{"kind":"per_unit","unit":"database","amount":2,"period":"month","currency":"USD"}]},{"name":"Vector Storage","components":[{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":18,"period":"month","currency":"USD"}]},{"name":"Messages","components":[{"per":{"qty":100,"unit":"messages"},"kind":"metered","amount":3,"period":"month","currency":"USD"}]},{"name":"Remove \"Powered By Epsilla\"","components":[{"kind":"fixed","amount":39,"period":"month","currency":"USD"}]}],"summary":"Free tier through $2,499/month. Custom pricing for Enterprise. Metered add-ons $2–39/month.","currency":"USD","freeTier":true,"sourceUrl":"https://epsilla.com","retrievedAt":"2026-08-03T13:12:38.383Z","startingPrice":{"amount":29,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"free","summary":"Open-source and available for free. Managed hosting available through Zilliz Cloud.","freeTier":true,"sourceUrl":"https://milvus.io","retrievedAt":"2026-09-10T21:06:32.662Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | free |
| pricing.price_level | mid | free |
| pricing.transparent | yes | no |
| release.cadence_days | - | 10 |
| release.history | - | `[{"url":"https://github.com/milvus-io/milvus/releases/tag/v3.0.1","date":"2026-09-09T07:32:57Z","type":"stable","version":"v3.0.1"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.23","date":"2026-08-28T07:59:27Z","type":"stable","version":"v2.6.23"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.22","date":"2026-08-04T01:55:59Z","type":"stable","version":"v2.6.22"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v3.0.0","date":"2026-07-29T14:27:06Z","type":"stable","version":"v3.0.0"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.21","date":"2026-07-24T06:50:28Z","type":"stable","version":"v2.6.21"},{"url":"https://github.com/milvus-io/milvus/releases/tag/client/v3.0.0-beta","date":"2026-07-19T14:35:01Z","type":"prerelease","version":"client/v3.0.0-beta"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.20","date":"2026-07-14T06:44:48Z","type":"stable","version":"v2.6.20"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.19","date":"2026-06-26T11:47:18Z","type":"stable","version":"v2.6.19"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.18","date":"2026-06-05T04:03:06Z","type":"stable","version":"v2.6.18"},{"url":"https://github.com/milvus-io/milvus/releases/tag/client/v2.6.5","date":"2026-05-26T02:44:44Z","type":"stable","version":"client/v2.6.5"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.17","date":"2026-05-22T03:15:16Z","type":"stable","version":"v2.6.17"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.16","date":"2026-05-14T04:15:09Z","type":"stable","version":"v2.6.16"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v3.0-beta","date":"2026-05-09T04:49:46Z","type":"prerelease","version":"v3.0-beta"},{"url":"https://github.com/milvus-io/milvus/releases/tag/client/v2.6.4","date":"2026-05-08T02:40:41Z","type":"stable","version":"client/v2.6.4"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.15","date":"2026-04-17T02:29:29Z","type":"stable","version":"v2.6.15"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.14","date":"2026-04-07T02:08:37Z","type":"stable","version":"v2.6.14"},{"url":"https://github.com/milvus-io/milvus/releases/tag/client/v2.6.3","date":"2026-03-24T06:33:20Z","type":"stable","version":"client/v2.6.3"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.13","date":"2026-03-23T07:58:53Z","type":"stable","version":"v2.6.13"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.12","date":"2026-03-13T07:24:42Z","type":"stable","version":"v2.6.12"},{"url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.11","date":"2026-02-12T01:57:24Z","type":"stable","version":"v2.6.11"}]` |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | - |
| security.scorecard | - | 4.4 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fmilvus-io%2Fmilvus%2Fpkg&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Vector Databases)

| Capability | Epsilla | Milvus |
|---|:--:|:--:|
| **Deployment** |  |  |
| Deployment | Managed | Self-hosted |
| Serverless / consumption pricing | ✓ | ✓ |
| **Index** |  |  |
| ANN index (HNSW / IVF / DiskANN / ScaNN / flat) | - | HNSW, IVF, FLAT, SCANN, DiskANN, GPU_CAGRA |
| Distance metrics (cosine / dot / Euclidean) | - | cosine, Euclidean, dot product |
| **Query** |  |  |
| Metadata filtering | - | Pre-filter |
| 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 | - | Sharded / distributed |
| **Consistency** |  |  |
| Consistency | - | Eventual |
| **Licensing** |  |  |
| Licence class | Proprietary | Permissive OSS |
| **Classification** |  |  |
| Purpose-built vs feature-of-parent | Feature of parent | Dedicated DBMS |

*Source: vioscaleAI. Generated 2026-09-21T06:23:26.666Z. "-" = undocumented, not absent.*