Faiss by Meta vs Milvus
Faiss by Meta vs Milvus, compared side by side on 12 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Faiss by Meta is on 28/100 and Milvus on 8/100.
Where each one leads
Faiss by Meta
- our overall score: 28/100 against 8/100
- agent readiness: 45/100 against 38/100
- domain rating: 97/100 against 77/100
Milvus
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Faiss by Meta | Milvus |
|---|---|---|
| What it is | Open-source library by Meta AI for efficient similarity search and clustering of dense vectors. | Open-source, high-performance vector database designed for scalable AI and machine learning applications. |
| Category | AI Foundation & Compute, Embedding Model, Vector Database, Machine Learning | AI, Data Infrastructure, SaaS, Vector Database |
| Sells toBusiness model | Open Source | B2B |
| Offering | Software | Platform |
| Founded | 2017 | 2019 |
| Headquarters | Not published | Redwood City, United States |
| Status | Active | Active |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Faiss by Meta | Milvus |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 28/100 | 8/100 |
| Team | 70/100 | 30/100 |
| Search visibility | 19/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | F (38/100) |
| Domain ratingLink authority, 0-100 | 97/100 | 77/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Faiss by Meta | Milvus |
|---|---|---|
| Open source | Yes | Yes |
| Self-hostable | Yes | No |
What users say
| Measure | Faiss by Meta | Milvus |
|---|---|---|
| Reddit sentimentThreads we track | 0 positive, 0 negative across 1 thread | Not published |
“It outperforms pgvector by 4x and significantly surpasses FAISS in disk-storage scenarios.”r/LocalLLaMA
Faiss by Meta vs Milvus: common questions
Which is better, Faiss by Meta or Milvus?
On our 0-100 score Faiss by Meta rates higher (28/100 against 8/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 12 data points above: read the rows that match what you are buying for.
How do Faiss by Meta and Milvus compare on the numbers?
Faiss by Meta leads on our overall score (28/100 against 8/100), agent readiness (45/100 against 38/100), domain rating (97/100 against 77/100).
What do real users say about Faiss by Meta and Milvus?
Faiss by Meta: 0 positive and 0 negative mentions across 1 Reddit threads we track, mostly in r/LocalLLaMA.
Read the full Faiss by Meta review and pricing or the Milvus review and pricing. You can also browse other Faiss by Meta alternatives we track.

