Large Language Models Can Strategically Deceive Their Users When Put Under Pressure
Philosophically-flavored questions
Analysis by Charles Rathkopf Last updated: January 2026
[Questions to be written]
Abstract
We demonstrate a situation in which Large Language Models, trained to be helpful, harmless, and honest, can display misaligned behavior and strategically deceive their users about this behavior without being instructed to do so. Concretely, we deploy GPT-4 as an agent in a realistic, simulated environment, where it assumes the role of an autonomous stock trading agent. Within this environment, the model obtains an insider tip about a lucrative stock trade and acts upon it despite knowing that insider trading is disapproved of by company management. When reporting to its manager, the model consistently hides the genuine reasons behind its trading decision. We perform a brief investigation of how this behavior varies under changes to the setting, such as removing model access to a reasoning scratchpad, attempting to prevent the misaligned behavior by changing system instructions, changing the amount of pressure the model is under, varying the perceived risk of getting caught, and making other simple changes to the environment. To our knowledge, this is the first demonstration of Large Language Models trained to be helpful, harmless, and honest, strategically deceiving their users in a realistic situation without direct instructions or training for deception.
Citation for this analysis
Charles Rathkopf, “Philosophical Questions in Large Language Models Can Strategically Deceive Their Users When Put Under Pressure,” AI Deception Papers, January 2026, https://doi.org/10.48550/arXiv.2311.07590