osi-ai-definition-requires-training-data-disclosure
IN premise — summaries/2026/08/24/wiki-LLaMA-chunk-3-chunk-2.md
Created 2026-08-24T17:11:14+00:00
The Open Source Initiative's AI open-source definition (published 28 October 2024) specifically requires training data disclosure as a criterion, which Meta's Llama models do not meet.
Summary
Under the Open Source Initiative's formal AI definition from October 2024, a model can't be called truly open source unless it publicly reveals what data it was trained on. Meta's Llama models fail this test, meaning their widely used "open source" label doesn't actually satisfy the industry's own published standard.