How Leopold Aschenbrenner built a $45 billion AI hedge fund — and lost most of it in days

Leopold Aschenbrenner, former OpenAI researcher and manager of the AI-focused hedge fund Situational Awareness, experienced a significant decline in fund value during the week of this reporting. Aschenbrenner had previously built the fund to a $45 billion valuation. The fund's losses during this period reduced its total value substantially from that peak.

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