A senior executive at OpenAI has stepped down, citing concerns over the company’s recent agreement with the U.S. military to deploy artificial intelligence technologies across defense systems.
Caitlin Kalinowski, who led the company’s robotics division, announced her departure Saturday in a post on X.
She said the decision came after the company signed a deal with the United States Department of Defense in February that could integrate its AI tools into a wide range of national security and defense operations.
“This wasn’t an easy call,” Kalinowski wrote. “AI has an important role in national security. But surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got.
This was about principle, not people.”

Ethical Concerns Over Military AI
Kalinowski’s departure highlights growing tensions inside the tech industry over the use of artificial intelligence in military and surveillance systems.
According to her statement, the deal could enable AI technology to assist in intelligence gathering, automated systems, and defense infrastructure.
Her primary concern centered on two issues: the potential use of AI for domestic surveillance and the development of autonomous weapons systems capable of making lethal decisions without direct human authorization.
“Surveillance of Americans without judicial oversight and lethal autonomy without human authorization are lines that deserved more deliberation than they got.”
— Caitlin Kalinowski
Her remarks echo broader concerns raised by researchers and technology ethicists who argue that powerful AI tools require strict governance before being deployed in sensitive national security contexts.
Growing Debate Across Silicon Valley
The agreement between OpenAI and the Pentagon comes amid a wider push by technology companies to work more closely with the U.S. government on artificial intelligence development.
Major firms including Microsoft, Google, and Amazon have also pursued defense-related AI contracts in recent years, arguing that the technology can strengthen cybersecurity, intelligence analysis, and national defense.
Critics, however, warn that such partnerships could blur the line between civilian technology and military applications.
OpenAI Yet to Comment on Departure
OpenAI has not yet publicly commented on Kalinowski’s resignation.
The company has previously said it intends to develop AI systems responsibly and has pledged to maintain safeguards around the deployment of advanced technologies.
Kalinowski did not indicate her next move but suggested she intends to remain active in discussions around ethical AI development.
Her departure marks one of the highest-profile exits tied directly to ethical concerns about the military use of artificial intelligence – a debate that is likely to intensify as governments increasingly integrate AI into defense systems.
