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ai-agent

fastembed-rs: Generate Embeddings

Get vector embeddings and reranking for your app with fastembed-rs, a Rust library for founders and developers.
intermediateโฑ 1-2 hours๐Ÿ’ต Free
963 stars133 forksRustQuality 8/10Updated 7/15/2026100% free ยท open source
What it is

Generate vector embeddings and rerank them using fastembed-rs, a Rust library.

What you can make with it

Embeddings that you can use in machine learning models for tasks like product recommendations and text classification.

How it helps

Using fastembed-rs can save time when building and testing machine learning models, and can also improve their performance by using optimized embeddings.

Real use case example

"A developer can use fastembed-rs to create embeddings for their app's product catalog, then use a machine learning model to recommend related products to users."

If you're new

Novice developers may find it best to first gain some experience with machine learning and Rust before using fastembed-rs.

If you're senior

A senior engineer would reach for fastembed-rs when they need to optimize the performance and efficiency of their large-scale machine learning models.

Common confusion cleared up

fastembed-rs is specifically designed for generating vector embeddings, not for building complete machine learning models.

Pairs with
Claude API for text classification tasksRedis for caching embeddingsTensorFlow or PyTorch for building machine learning models
Why we list it on WorkflowStacks: fastembed-rs is included because it's a highly-rated, open-source Rust library for generating vector embeddings.
What it does

Generates ultra-fast vector embeddings and enables local semantic search and text ranking for AI applications without external dependencies.

When to use it
  • โ€ขBuilding search functionality in a Rust-based AI product
  • โ€ขCreating intelligent recommendation systems with local processing
  • โ€ขDeveloping RAG (retrieval-augmented generation) pipelines that require efficient text embedding
Quick start
  1. 1Add fastembed to Cargo.toml: `fastembed = "latest_version"`
  2. 2Import the embedding model in your Rust code
  3. 3Generate vector embeddings for your text corpus
  4. 4Use embeddings for semantic search or clustering
Ready-to-paste prompt
EmbeddingModel::from_pretrained(Model::BGESmall).embed(vec!["search query"])
Saves to your device

Topics

embeddings
fastembed
rag
reranker
reranking
retrieval
retrieval-augmented-generation
vector-search
What's inside โ€” free to inspect
No purchase needed

Read the entire source before you build โ€” unlike paid marketplaces that hide it behind a buy button.

8
top-level files
3
folders
788K
repo size
Apache-2.0
license
Key files
README.md
File tree
.github/
src/
tests/
.envrc
.gitignore
.releaserc
Cargo.toml
flake.lock
flake.nix
LICENSE
README.md
Quick Actions
Details
Creator
Anush008
Language
Rust
Category
ai-agent
Published
10/1/2023

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