Introducing Forrester’s AI Model Openness Framework
Nobody is talking about what 'open source' actually means in AI. Forrester just gave you the framework to tell the difference.
Why it matters
As open vs. closed model wars intensify, a standardized framework for measuring true openness becomes critical for enterprises evaluating vendor lock-in risk and genuine community-driven development.
The key facts
7 to knowForrester Model Openness Framework (MOF) introduced
Assessment across three dimensions: Reproducibility, Usage Rights, Community Momentum
Framework applies to both open-source and commercial models
Addresses ambiguity in 'open source' labeling across AI industry
Three assessment dimensions: Reproducibility, Usage Rights, Community Momentum
Applies to both open-source and commercial models
Published April 17, 2026
Go to the source
Forrester Blogforrester.com
Publisher excerpt: Forrester's Model Openness Framework (MOF) can help you assess the real degree of openness in any AI model — whether it’s labeled open source or commercial across three key dimensions: Reproducibility, Usage Rights, and Community Momentum