OpenAI robotics team leader Caitlin Kalinowski announced her resignation from the artificial intelligence company, citing opposition to its controversial agreement with the Department of Defense as the reason for her departure.

Kalinowski, a hardware executive who had been leading OpenAI's robotics division, made the announcement of her resignation public, specifically linking her decision to the company's deal with the Pentagon. The departure represents a notable loss of leadership talent in OpenAI's hardware and robotics initiatives.

Separately, OpenAI has announced another delay for ChatGPT's "adult mode" feature, which was originally scheduled for release in December. The feature is designed to provide verified adult users with access to erotica and other adult-oriented content through the AI chatbot platform.

The adult content feature had already faced previous delays before missing its December launch window. OpenAI has not provided a new timeline for when the adult mode functionality might become available to users.

Both developments come as OpenAI continues to navigate various operational and strategic challenges while expanding its AI capabilities across different sectors, including potential defense applications and consumer-oriented features.