The appointment adds another high-profile operator to Benchmark's deliberately small partnership. The firm, known for backing companies like eBay, Twitter, Uber, and Discord, maintains a distinctive model of raising relatively modest funds and giving each partner equal standing.

Altman built Lattice into a significant player in the HR technology space before stepping back from day-to-day operations. His move to venture capital follows a well-worn path of successful founders transitioning to the investor side.

The Altman family connection to OpenAI — the most valuable private company in AI — is notable but Benchmark has traditionally valued independent thinking and operational experience over connections.