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Anthropic - Footnote 9

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Last checked: 4/3/2026

The source does not mention Jaan Tallinn leading a Series A at a $550 million pre-money valuation, Dustin Moskovitz participating in seed and Series A rounds, or FTX investing approximately $500 million in Anthropic in 2022.

Evidence — 1 source, 1 check

www.semafor.com/article/11/21/2023/how-effective-altruism-led-to-a-crisis-at-openai(1 check)

unverifiable0%Haiku 4.5 · 4/3/2026

Found: <EntityLink id="E577" name="jaan-tallinn">Jaan Tallinn</EntityLink>, co-founder of Skype, reportedly led the Series A at a \$550 million pre-money valuation. <EntityLink id="E436" name="dustin-moskovi…

Note: The source does not mention Jaan Tallinn leading a Series A at a $550 million pre-money valuation, Dustin Moskovitz participating in seed and Series A rounds, or FTX investing approximately $500 million in Anthropic in 2022.

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