Crate simi 

SIMI – Similarity Toolkit

A general-purpose toolkit of similarity checks, designed to protect developers from wasting compute and money on LLMs for simple tasks.

Feature flags

• std (default on) – enables standard library integration.
• python – enables Python bindings via PyO3.
• nodejs – enables Node.js bindings via napi-rs.

Quick start

use simi::algo::{levenshtein, jaro_winkler};

let d = levenshtein::similarity("kitten", "sitting");
assert!((d - 0.571).abs() < 0.01);

let j = jaro_winkler::similarity("MARTHA", "MARHTA");
assert!((j - 0.961).abs() < 0.01);

Re-exports

pub use batch::BatchComparator;

pub use error::SimiError;

pub use preprocess::Preprocessor;

pub use router::resolve_intent;

pub use router::Intent;

pub use router::SimiFlow;

pub use router::Strategy;

pub use router::Threshold;

pub use algo::*;

Modules

algo

The Algorithm Arsenal

batch

Batch processing: uses rayon to evaluate arrays of thousands of strings in parallel across all CPU cores.

error

prelude

Common imports for the simi crate.

preprocess

String preprocessors: zero-copy string cleanup that normalizes unicode, handles whitespace, and removes stop-words before the math happens.

router

The SimiFlow Routing Pipeline