TypeSafe AI opens hiring; CEO claims he co-invented RLHF and InstructGPT

hardimanjames · x · 2026-09-20

TypeSafe AI is hiring and opened a waitlist, with a notable founding team: CEO Diogo Almeida (claimed co-inventor of RLHF and InstructGPT, ex-Google Brain), COO Sasha Sheng (ex-Meta/FAIR research engineer, NeurIPS/ECCV publications), and CTO Erik Gafni (repeat founder, ex-unicorn early employee). The company's tagline is "Build Prod, Not God", signaling a focus on enterprise-grade production AI over frontier hype.

Related event: RLHF Co-inventor Launches TypeSafe AI, Opens Hiring(2 posts)→

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