AI Index
The mission of the AI Index is to track, collate, distill, and visualize data relating to artificial intelligence. We provide unbiased, rigorously vetted, and globally sourced data for policymakers, researchers, journalists, executives, and the general public to develop a deeper understanding of the complex field of AI.

Review the 2024 AI Index Report
The AI Index Report tracks, collates, distills, and visualizes data related to artificial intelligence.
Recognized Globally
The AI Index is recognized globally as one of the most credible and authoritative sources for data and insights on artificial intelligence.
Previous editions have been cited in major newspapers, including the The New York Times, Bloomberg, and The Guardian, have amassed hundreds of academic citations, and been referenced by high-level policymakers in the United States, the United Kingdom, and the European Union, among other places. This year’s edition surpasses all previous ones in size, scale, and scope, reflecting the growing significance that AI is coming to hold in all of our lives.
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AI Index in the News
A study led by Stanford HAI Faculty Fellow Johannes Eichstaedt reveals that large language models adapt their behavior to appear more likable when they are being studied, mirroring human tendencies to present favorably.

Stanford law professor advocates for public-sector AI tools to support self-represented litigants in civil cases.
Holistic Evaluation of Large Language Models for Medical Applications

Medical and AI experts build a benchmark for evaluation of LLMs grounded in real-world healthcare needs.

Stanford HAI joined global leaders to discuss the balance between AI innovation and safety and explore future policy paths.

Trained on a dataset that includes all known living species – and a few extinct ones – Evo 2 can predict the form and function of proteins in the DNA of all domains of life and run experiments in a fraction of the time it would take a traditional lab.
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Who We Are
The AI Index program is an independent initiative at the Stanford HAI. The program is a collaborative effort led by the AI Index Steering Committee, an interdisciplinary group of experts from across academia and industry. See All People




Evaluating AI Progress and Impact
We write about the progress and impact of artificial intelligence through a cross-sector lens, from research and development to technical performance, the economy, education, policy, and more.
Measurement in AI Policy: Opportunities and Challenges
As artificial intelligence increasingly influences our world, it becomes crucial to assess its technical progress and societal impact. This paper surveys problems and opportunities in the measurement of AI systems and their impact, based on a workshop held at Stanford University in the fall of 2019. We identify six summary challenges inherent to measuring the progress and impact of AI, and summarize over 40 presentations and associated discussions from the workshop. We hope this can inspire research agendas in this crucial area.
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Judicial Decision Data Collection
On a research project regarding the application of AI-relevant regulatory frameworks, the AI Index is collaborating with Dr. Elif Kiesow Cortez who founded and leads the AI & LegTech Lab of The Hague University of Applied Sciences. The project aims to improve predictability and legal certainty for providers and users of AI technology via a judicial decision database.
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Support Our Work
Stanford HAI relies on philanthropic support as it pursues its mission. Unrestricted gifts and pledges to support Stanford HAI, including AI Index, may be made online.
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We welcome feedback and new ideas for our annual reports and the Global AI Vibrancy Tool.