Manifold

github.com/uber/manifold AI Data & Analytics Open-source projectOpen source

Manifold provides visual debugging for machine learning models without depending on a specific model type.

github.com/uber/manifold
Manifold homepage screenshot

About Manifold

Manifold is a model-agnostic visual debugging tool for machine learning. It helps practitioners move beyond summary metrics such as AUC and RMSE to find data subsets where predictions are inaccurate and to surface feature distribution differences between better and worse-performing subsets.

It provides a Performance Comparison View for comparing models across automatically created segments and a Feature Attribution View for feature distributions by performance level. Data can be added by CSV upload in the demo app or programmatically as a component, using matching x, yPred, and yTrue arrays; the recommended size is 10,000–15,000 instances, with random subsampling for larger datasets.

Key features

  • Compare prediction performance across models and data subsets
  • Identify under-performing data subsets for further inspection
  • Visualize feature distributions across performance levels
  • Segment data automatically with k-Means performance clustering
  • Import data by CSV upload in demo app
  • Input feature, prediction, and ground-truth arrays programmatically
Best for: ML practitioners who need to locate and explain under-performing data subsets beyond summary metrics.
Good for
  • Works across model types without model-specific setup
  • Compares multiple models across automatically created performance segments
  • Surfaces feature distribution differences between better and worse subsets
Watch out for
  • Requires data in specific x, yPred, yTrue format with matching order
  • Recommended for 10,000-15,000 instances; larger datasets need subsampling

Manifold at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Yes · Source code
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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Manifold FAQ

How can I add data to Manifold?
Use CSV upload in the demo app, or convert data programmatically using x, yPred, and yTrue when using the component in your own app.
What format must input data follow?
x holds feature objects, yPred holds prediction lists per model, and yTrue holds ground truth; the order of instances must match across all three.
How does the Performance Comparison View group data?
It uses k-Means clustering on per-instance scores — log-loss for classification and squared-error for regression by default — to create segments based on performance similarity.
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