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Anthropic Names Cuéllar Global Affairs Chief Amid Trump Blacklist

8/4/2026

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Summary

Story summary

Anthropic appointed Mariano-Florentino Cuéllar as its first chief global affairs officer.
Cuéllar will report to President Daniela Amodei, work from San Francisco, and manage U.S. and foreign government relations.
U.S. President Donald Trump’s administration blacklisted Anthropic’s technology and issued an export-control directive temporarily banning overseas sales of Mythos 5 and Fable 5 models, which Anthropic is challenging in court.

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Story summary

Anthropic appointed Mariano-Florentino Cuéllar as its first chief global affairs officer.
Cuéllar will report to President Daniela Amodei, work from San Francisco, and manage U.S. and foreign government relations.
U.S. President Donald Trump’s administration blacklisted Anthropic’s technology and issued an export-control directive temporarily banning overseas sales of Mythos 5 and Fable 5 models, which Anthropic is challenging in court.