{"id":"ce7fff4e-6691-476a-87c4-903a8e7aa68c","kind":"people","code":"UB-P4250","name":"Jack Altman","nameBasis":"original-brand","summary":"Jack Altman joined Benchmark as a General Partner in February 2026. He co-founded the HR-software company Lattice and previously ran his own AI-focused fund, Alt Capital (roughly $275M second fund), bringing that team and existing board seats to Benchmark. He is the brother of OpenAI CEO Sam Altman.","description":"Jack Altman joined Benchmark as a General Partner in February 2026. He co-founded the HR-software company Lattice and previously ran his own AI-focused fund, Alt Capital (roughly $275M second fund), bringing that team and existing board seats to Benchmark. He is the brother of OpenAI CEO Sam Altman.","country":null,"category":null,"originalName":"Jack Altman","eventDate":null,"website":null,"sourceUpdatedAt":"2026-10-21T11:52:25.628Z","englishUpdatedAt":"2026-10-22T00:59:15.669Z","reviewedAt":"2026-10-22T00:59:15.669Z","snapshotAt":"2026-10-22T00:48:04.883Z","sourceHash":"01c89f9d710b5ecde4bf23ae6e3ffb4f6811653d005f657a8914bcd7151ff4f5","companyId":null,"foundedYear":null,"logoUrl":null,"originalText":"Jack Altman joined Benchmark as a General Partner in February 2026. He co-founded the HR-software company Lattice and previously ran his own AI-focused fund, Alt Capital (roughly $275M second fund), bringing that team and existing board seats to Benchmark. He is the brother of OpenAI CEO Sam Altman.","sources":[],"related":[],"path":"/people/jack-altman","structured":{"city":null,"country":null,"location":null,"role":"General Partner","category":null,"company":null},"definition":"Jack Altman is listed as General Partner.","summaryBasis":"translated","thin":false,"canonical":"https://uniquebase.ai/people/jack-altman"}