Elon Musk has shared a video featuring Citadel CEO Ken Griffin, who warns that AI is increasingly replacing high-skilled finance jobs. Speaking at Stanford University, Griffin noted that AI systems are now capable of performing PhD-level work in hours, a task that previously took weeks or months. This rapid advancement in AI technology has significantly altered operations within Citadel, traditionally reliant on highly educated quantitative researchers. Griffin's remarks reflect a broader trend in 2026, where AI is cited as a major factor in workforce reductions across the tech industry. While some analysts argue that AI's impact on job displacement is not yet widespread, companies like Coinbase and Microsoft are shifting towards AI-augmented teams. The finance sector is closely monitoring how these changes affect productivity and cost efficiency, with upcoming earnings reports expected to shed light on AI's role in operational adjustments.