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Albert Einstein never took an IQ test. The figure of 160 (and other figures, ranging from 160 to 200, that appear in popular sources) is a posthumous estimate, not a measurement. Stanford-Binet tests were only published in the form most widely associated with high-IQ figures from 1916 onward, by which time Einstein had already published the special theory of relativity (1905).

Einstein's documented academic record is also more mixed than the popular IQ-hero narrative suggests: he was an excellent student in mathematics and physics from childhood but failed his first attempt at the Swiss Federal Polytechnic entrance exam in 1895, and his early-career academic prospects were poor enough that he worked at the Bern patent office while writing the four 1905 papers that established his career.

His Nobel Prize was awarded for the photoelectric effect (1905, not relativity), and his later work on the EPR paradox laid the foundation for quantum information theory. None of this required, or was measured by, an IQ figure.