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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 12September 14, 2026 · 79 min

Emergency Pod: An AI Safety Tipping Point? Amodei Calls for an AI Slowdown

Dario Amodei asks the AI industry to slow itself down. Greg and Adam Goodwin break down the September 12 “pace the frontier” essay — what it asks of companies, industry, and governments, and why Amodei argues pacing makes sense now when the 2023 pause letter did not — then the reactions: Altman and Hassabis broadly on board, President Trump calling AI catastrophe “a hoax,” Beijing crying “fear mongering,” and a Congress unlikely to act before the midterms.

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Episode 11September 11, 2026 · 62 min

GPT-6 Astra Wows, OpenAI Goes Pro-Regulation, and the Trump Administration Warms to AI Safety

OpenAI ships GPT-6 Astra — 99.9% on ARC-AGI-3 and perfect cyber benchmarks, but no more readable chain of thought — and producer Jack Conlin fills in to ask Greg what the release actually shows. Plus the undisclosed June agent breakout on a German wiki, Chris Lehane’s call for mandatory federal AI safety regulation, the Carolina Principles at the G20, and Judge Lin’s ruling in Anthropic v. Department of War.

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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.

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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.