Karina Nguyen

Smth new, prev. AI research & product @OpenAI, @Anthropic

United States

About

Projects: http://karinanguyen.com/projects/ Building AGI at OpenAI and prev. Anthropic by researching RL and inventing products to fundamentally change how we interact with it. In the past I contributed to the Pulitzer Prize winning visual investigations. I interned at the New York Times, Dropbox, Square, and Primer.ai Writing: https://semaphore.substack.com/ Research: https://scholar.google.com/citations?user=aEJZc3EAAAAJ&hl=en

Experience

  • Smth new at Stealth
    Jan 2026 - Present · 6 mos

    AI startup - PostTrainBench

  • Angel Investor / Advisor at Karina Nguyen
    2023 - Present · 3 yrs 6 mos

    AI startups

  • Member of Technical Staff at OpenAI
    May 2024 - Sep 2025 · 1 yr 5 mos

    Research & product: - Releases: o3 (tools), ChatGPT Tasks, 4o (nov’24), ChatGPT Canvas, SimpleQA, creative writing model (unreleased), o1 core contributor - Posttraining research: new methods of RLAIF for coding, creative reasoning, perfect prior, model spec alignment

  • Member of Technical Staff at Anthropic
    Jun 2022 - May 2024 · 2 yrs

    Posttraining research, Claude 1-3.5, early product design & engineering

  • ML Research at Berkeley RISE Lab
    Jan 2022 - Jan 2023 · 1 yr 1 mo

    Advisor: Joseph E. Gonzalez ML systems