---
title: "FAISS - Efficient Similarity Search - Air Market"
description: "When you have a very large set of items stored as vectors and need to find the ones most alike, this does that search. It is described as fast and built for very large scale."
canonical: "https://airmarket.ai/app/faiss"
---

[Air Market](/) / [Data & Analytics](/category/data) / FAISS - Efficient Similarity Search

Skill by [Nous Research](/@nousresearch)

# FAISS - Efficient Similarity Search

Find the closest matches in very large collections of vectors

## What this does

When you have a very large set of items stored as vectors and need to find the ones most alike, this does that search. It is described as fast and built for very large scale.

### Top 3 things it does for you

- Find items most similar to this one
- Search a very large vector collection

## Information

**FAISS - Efficient Similarity Search at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Nous Research](/@nousresearch) |
| Category | [Data & Analytics](/category/data) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Languages | en |
| Version | 1.0.0 |
| Size | 11 KB |
| Licence | MIT |
| Repository | [NousResearch/hermes-agent](https://github.com/NousResearch/hermes-agent/tree/a61183b56fdb45b9d2a0f2f6b8482e665ccf702f/optional-skills/mlops/faiss) |
| GitHub stars | 261,931 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of FAISS - Efficient Similarity Search and flagged nothing. AIR's verdict: **safe**.

**What FAISS - Efficient Similarity Search's check was run against**

|  |  |
| --- | --- |
| Commit | a61183b56fdb45b9d2a0f2f6b8482e665ccf702f |
| Content hash | c7358b4807d72467f34a28e59e1384a2cff26bbf842fafcd363b1ddab20d0cda |
| Files read | [Browse the files at this exact commit](https://github.com/NousResearch/hermes-agent/blob/a61183b56fdb45b9d2a0f2f6b8482e665ccf702f/optional-skills/mlops/faiss/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for FAISS - Efficient Similarity Search](/security/faiss)

## About FAISS - Efficient Similarity Search

FAISS does similarity search over vectors. It is described as fast and able to work at very large scale.

## What's inside

- SKILL.md - instructions
- references/index_types.md - reference

## Questions

### Is FAISS - Efficient Similarity Search safe to install?

AIR scanned this exact version of FAISS - Efficient Similarity Search and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit a61183b56fdb, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/faiss.

### How do I install FAISS - Efficient Similarity Search?

Open https://airmarket.ai/app/faiss on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/NousResearch/hermes-agent/tree/a61183b56fdb45b9d2a0f2f6b8482e665ccf702f/optional-skills/mlops/faiss. Install from that link, not the branch.

## Related on Air Market

- [More Data & Analytics listings](/category/data)
- [Everything by Nous Research](/@nousresearch)

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Canonical URL: <https://airmarket.ai/app/faiss>