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Karan Singhal
330 posts
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Karan Singhal
@thekaransinghal
Health AI, AGI benefits, safety @OpenAI
San Francisco, CA
karansinghal.com
Joined April 2008
336
Following
10K
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  • Pinned
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    Karan Singhal
    @thekaransinghal
    16h
    New research on beneficial RL: models trained on a small amount of beneficial trait data improve on a wide range of alignment and benefits evaluations, even if trained only on health domain data. We hope it’s a step towards more broadly and persistently beneficial models. 🧵
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    30K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Nov 3, 2025
    Not true. Despite speculation, this is not a new change to our terms. Model behavior remains unchanged. ChatGPT has never been a substitute for professional advice, but it will continue to be a great resource to help people understand legal and health information.
    453K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Jul 22, 2024
    📣 Life update: I’ve joined OpenAI and am hiring researchers! 💥 I’m immensely grateful to all of my teammates at Google/DeepMind over the last ~5 years–you all have taught me so much. I’m excited to continue marching towards our shared mission to enable universal access to
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    157K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Jul 22, 2025
    📣 Excited to share our real-world study of an LLM clinical copilot, a collab between @OpenAI and @PendaHealth. Across 39,849 live patient visits, clinicians with AI had a 16% relative reduction in diagnostic errors and a 13% reduction in treatment errors vs. those without. 🧵
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    00:00
    493K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Feb 14, 2025
    OpenAI's Health AI team is now hiring backend/fullstack SWEs towards our mission of universalizing access to health information! Please apply if you: - Can write maintainable, high-quality backend / fullstack code at high velocity - Are willing to run through walls towards this
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    446K
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    Karan Singhal
    @thekaransinghal
    May 12, 2025
    📣 Proud to share HealthBench, an open-source benchmark from our Health AI team at OpenAI, measuring LLM performance and safety across 5000 realistic health conversations. 🧵 Unlike previous narrow benchmarks, HealthBench enables meaningful open-ended evaluation through 48,562
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    118K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Oct 14, 2024
    📢 Our Health AI team is hiring Research Scientists / Engineers towards: (1) universalizing access to health information (2) using health as a testbed for safety / alignment (3) learning how to deploy in high-stakes domains. Please apply if you: - have experience in practical
    user avatar
    Lilian Weng
    Thinking Machines
    @lilianweng
    Oct 14, 2024
    📢 We are hiring Research Scientists and Engineers for safety research at @OpenAI, ranging from safe model behavior training, adversarial robustness, AI in healthcare, frontier risk evaluation and more. Please fill in this form if you are interested: jobs.ashbyhq.com/openai/form/oa…
    43K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Aug 27, 2025
    FYI HealthBench now conveniently available on HuggingFace. We hope it helps model developers and the healthcare community understand model performance and safety.
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    openai/healthbench · Datasets at Hugging Face
    From huggingface.co
    31K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Aug 5, 2025
    OpenAI’s new gpt-oss models are our “healthiest” models pound-for-pound. 💥 The 120b model outperforms all our other frontier models on HealthBench–GPT-4o, o1, o4-mini–except o3, which it nearly matches despite being much smaller. Even healthier models to come soon! 👇
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    23K
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    Karan Singhal
    @thekaransinghal
    Jul 12, 2023
    Honored to see our work on Med-PaLM, our medical large language model, published in @Nature today! nature.com/articles/s4158… Huge thanks to our all-star team @AziziShekoofeh @taotu831 @alan_karthi @vivnat and many more teammates at @GoogleAI @googlehealth!
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    36K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Dec 2, 2024
    I will be in Vancouver for NeurIPS 🇨🇦 next week! Please DM if you’d like to: - Catch up in-person - Chat about health AI, AI safety, or ensuring AGI is beneficial - Learn about our team–we’re hiring researchers: openai.com/careers/resear… Please reach out if you have hands-on
    14K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Jan 20, 2025
    (Pardon the interruption in your regularly scheduled AGI programming!) 📄 The Med-PaLM 2 paper is now published in Nature Medicine! The work demonstrated that with some tuning, LLMs could not only perform well on medical exams, but could also answer consumer medical questions
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    8.7K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Mar 19, 2024
    Excited to share our newest work! 📝 Evaluation of LLMs is hard, especially for health equity. We provide a multifaceted human assessment framework, 7 newly-released adversarial datasets, and perform the largest human eval study on this topic to date. 🧵: arxiv.org/abs/2403.12025
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    43K
  • user avatar
    Karan Singhal
    @thekaransinghal
    Aug 7, 2025
    GPT-5 substantially pushes the frontier of health performance and safety and is widely available to all users today. Details below 🧵
    user avatar
    OpenAI
    @OpenAI
    Aug 7, 2025
    Replying to @OpenAI
    GPT-5 is our best model yet for health-related questions, empowering users to be informed about and advocate for their health. The model now provides more precise and reliable responses, adapting to the user’s context, knowledge level, and geography.
    HealthBench
    30K

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