Humans& raised $480M at $4.48B valuation, yet its Persimmon model remains inaccessible
niloofar_mire · x · 2026-10-14
Humans&, founded by ex-Anthropic/xAI/Google staff and Stanford's Diyi Yang, raised $480M at a $4.48B valuation — but critics note its Persimmon model is still locked behind a request form with no known external users, its site looks vibecoded, and its "SOTA" numbers come from self-built benchmarks and internal evaluations no one can reproduce. An employee at the company (@niloofarmire) shared the quote to complain about the wave of personal attacks the raise has provoked in SF.
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