Scroll
Decision Tree Research

Decision Tree Research is an independent research and analysis firm that specializes in strategic technologies, public policy, and geopolitics.

“Allen has been a must-read.”
— Ben Thompson, Stratechery
“Very much at the center of the formulation of current U.S. policy.”
— The Economist
“The most-watched U.S. analyst on the subject.”
— Semafor

Subscribe to Gregory C. Allen’s newsletter for timely, evidence-based analysis of the big policy debates in AI, semiconductors, and defense tech.

From The AI Power Podcast

Weekly episodes on AI policy, semiconductors, and the U.S.–China technology competition — hosted by Gregory C. Allen.

Episode 10August 28, 2026 · 48 min

The OpenAI Hack Changes the State AI Regulation Debate — Plus Chinese AI on Chinese Chips?

OpenAI and METR both published detailed reports on July’s Hugging Face incident — coordinated group action among the 700 agents involved — and OpenAI is now calling for collective cyber defense and an update to California’s SB 53. Greg and Adam compare the state AI laws taking shape in California, New York, Illinois, and Massachusetts, then dig into Z.ai’s cheap, efficient GLM-5.3 Flash and its claim to run inference on “Chinese” AI chips.

Listen →
Episode 9August 26, 2026 · 62 min

AI’s Impact on Education — with Casey Cuny, California’s 2024 Teacher of the Year

Greg sits down with Casey Cuny, California’s 2024 Teacher of the Year and a self-described AI power user, for a ground-level look at what AI is actually doing in the classroom. They cover the challenges facing today’s students, why with homework “if it goes home, it will be AI’d,” the AI app Casey built for teachers, and the education recommendations policymakers most need to hear.

Listen →
Episode 8August 22, 2026 · 54 min

OpenAI Slows Training, Taiwan Gets AI-Hacked, and Toxic Data-Center Politics

Labs have delayed releasing a model before, but OpenAI’s August 17 post is the first time one has slowed down building one — a two-week pause on RL training that puts its largest frontier run on hold. Then an Israeli security firm’s account of an autonomous AI attack on Taiwan’s nuclear safety agency: four days, 1,395 files, 85 cracked credentials, and Chinese-language code-switching in the operational documentation. Plus Beijing’s H200 reversal and the roughly 500,000 chips now bound for Chinese buyers, a leaked State Department letter telling 35 Pax Silica signatories that “to be part of everything is to be part of nothing,” and the NRSC memo that has Greg retiring his own year-old line about data-center opposition being sandbags against a tsunami.

Listen →

Why “Decision Tree”?

The decision tree is one of the most useful analytical tools in three disciplines that rarely meet: Machine Learning & AI, Corporate Strategy, and Government Policy Analysis.

In machine learning, the decision tree is foundational to how models classify and predict. In business strategy, it structures operations planning, capital allocation, and risk decisions. In policy analysis, it maps the consequences of regulation, sanctions, and other interventions through complex systems.

Gregory C. Allen’s career has spanned all three. The firm’s name signals the methodology that runs through the work: enumerate the decisions, trace the branches honestly, find the paths that carry the most consequence, and reason rigorously before acting. Decision Tree Research applies that discipline to our analysis of the technologies shaping global power competition.

Machine Learning & AI Corporate Strategy Government Policy Analysis DECISION TREE RESEARCH
Decision Tree Research operates at the intersection of machine learning, business strategy, and policy analysis.

Built on a body of work

Before founding Decision Tree Research, Gregory C. Allen authored some of the most impactful analysis in U.S. AI policy — at CSIS, the Department of Defense Joint Artificial Intelligence Center, the Center for a New American Security, and the Belfer Center for Science and International Affairs at Harvard Kennedy School.