Shapley

Quantify classifier value in machine learning ensembles

EstablishedOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Cooling

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is Shapley?

A data-driven framework to quantify the value of classifiers within a machine learning ensemble. Shapley helps understand and optimize the contribution of each model in an ensemble setup.

Key differentiator

Shapley stands out by providing a clear framework to quantify the value of classifiers in an ensemble, offering insights into model interactions and contributions that are crucial for optimizing machine learning ensembles.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Quantifies the value of classifiers in ensemblesmedium

Data-driven approach to model evaluationmedium

Flexible for various ensemble learning scenariosmedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited documentation and examples for complex use caseshigh

Official docs lack detailed guides on advanced ensemble configurations

Performance overhead in large-scale ensemblesmedium

Computational complexity increases significantly with more classifiers, impacting real-time applications

Fit analysis

Who is it for?

✓ Best for

Data scientists looking to understand the contribution of individual classifiers in an ensemble setup

Machine learning teams aiming to optimize their ensemble models for better performance and efficiency

✕ Not a fit for

Projects that do not involve machine learning ensembles or classifier evaluation

Teams requiring real-time analysis as Shapley is designed for offline, data-driven evaluations

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with Shapley

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →