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    Lilian Weng

    Researcher examining where LLM-generated synthetic participants fail to represent real human populations, central to debates about synthetic evaluation data.

    #23 Prompt engineering#28 AI reasoning models#29 LLMOps
    35CiteRank

    Last updated 11 Nov 2026 · Named in 43 answers across 5 engines
    Bing AI Mode starts a separate baseline. Copilot remains a separate public engine and keeps its history; changes across the switch are not like-for-like growth.

    How AI engines see them

    Recognized by 4 of 5 measured engines. Updated 2026-10-26

    Copilot, Gemini, Google AI Mode and Perplexity agree that Lilian Weng is a former VP of Research and Safety at OpenAI who writes the Lil'Log blog and is linked to LLM-powered autonomous agents. Perplexity adds that she co-founded Thinking Machines Lab and later returned to OpenAI to lead research on AI systems that speed up internal research. ChatGPT does not name her with details that fit her record, as it only gives a general OpenAI researcher view. The engines cite lilianweng.github.io and antoinebuteau.com most often, and Perplexity also cites businessinsider.com.

    • ChatGPTNamed in 13 answers

      No description yet.

    • GeminiNamed in 11 answers

      Describes her as former VP of Research and Safety at OpenAI whose work on LLM-powered autonomous agents frames AI as a general problem solver.

      Known for
      • LLM-powered autonomous agents work
      • task decomposition frameworks
    • Google AI ModeNamed in 9 answers

      Says she is a former OpenAI VP whose Lil'Log essay on LLM-powered autonomous agents outlines planning, memory and tool use.

      Known for
      • LLM-Powered Autonomous Agents essay
      • agent architecture framework
    • PerplexityNamed in 6 answers

      Says she is a technical educator behind Lil'Log, spent nearly seven years at OpenAI, co-founded Thinking Machines Lab and returned to OpenAI in July 2026.

      Known for
      • clear technical explainers on Lil'Log
      • founding OpenAI Applied AI Research team
    • Bing AI ModeNot named

      No description yet.

    • CopilotNamed in 4 answers

      Says she spent nearly seven years at OpenAI building safety infrastructure, became VP of Research and Safety, and writes the Lil'Log blog and works on recursive self-improvement.

      Known for
      • building OpenAI safety infrastructure
      • Lil'Log blog
      • recursive self-improvement research

    Top Segments

    • #23Prompt engineeringof 73
      Named in 9 answers
    • #28AI reasoning modelsof 78
      Named in 7 answers
    • #29LLMOpsof 88
      Named in 10 answers

    Top URLs

    1. 1
      https://www.laude.org/impact/andrej-karpathy
      laude.org8 citations
    2. 2
      GitHub - mattnigh/follow-the-ai-leaders: A list of AI leaders and communities you can follow
      github.com6 citations
    3. 3
      personal blog
      lilianweng.github.io6 citations

    Prompts where Lilian is named

    Run now opens the answer page for that prompt.

    • Who should I follow to learn about MLOps from top experts?

      Named by 1 engines

    • Who are the most influential voices in LLMOps & inference?

      Named by 1 engines

    Track Lilian

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