Faiss Open-Source Local Vector Similarity Search

Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCE

MIT-licensed C++ library with Python bindings for local dense-vector similarity search and clustering; CPU indexes and optional GPU implementations have no vendor software subscription or per-query quota.

View official documentation

Plan details

What do these plan and deployment labels mean?

Plan: Ongoing free allowance
Deployment model: Local / embedded
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-11-03
Last checked: 2026-11-01

Important restrictions

Faiss is an embedded library, not a hosted vector database or free API. CPU/RAM/storage, optional GPU hardware and CUDA/ROCm dependencies, embedding generation and any cloud infrastructure are supplied separately and may cost money; follow MIT and third-party notices.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.