In a memo to OpenAI staff, Interim CEO Mira Murati expressed being “honored and humbled” to step into the leadership role after Sam Altman’s departure. She urged employees to stay focused and true to the company’s core values. Speculation had initially suggested Microsoft’s involvement in Altman’s removal, but sources claim Microsoft didn’t orchestrate it. Microsoft CEO Satya Nadella reassured commitment to the partnership, stating they have full access to everything needed for innovation. Murati emphasized OpenAI’s crucial juncture with widely adopted tools, active developer engagement, and ongoing policy considerations for regulating AI. Altman’s departure was not mentioned by name.