AI War Games Predict Nuclear Escalation in 95% of Scenarios

TL;DR Summary
An artificial-intelligence researcher conducted armed-conflict simulations with Anthropic’s Claude, OpenAI’s ChatGPT, and Google’s Gemini. In about 95% of the scenarios, the AI models deployed nuclear weapons, with near-universal use of tactical nukes and threats to launch strategic weapons. Escalation tended to rise rather than fall, and de-escalatory options were rarely chosen, raising concerns about relying on AI for life-and-death military decisions and prompting calls for caution from experts and policymakers.
- AI Opted to Use Nuclear Weapons 95% of the Time During War Games: Researcher Common Dreams
- AIs can’t stop recommending nuclear strikes in war game simulations New Scientist
- AIs are happy to launch nukes in simulated combat scenarios theregister.com
- Bloodthirsty AI models more willing to start nuclear war than human counterparts, harrowing new study shows New York Post
- LLMs used tactical nuclear weapons in 95% of AI war games, launched strategic strikes three times — researcher pitted GPT-5.2, Claude Sonnet 4, and Gemini 3 Flash against each other, with at least one model using a tactical nuke in 20 out of 21 matches Tom's Hardware
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