AI news story

Website "In the Weights" shows whether AI models know who you are

Two former OpenAI employees have built a website called "In the Weights" that reveals which people AI models can recall purely from their training data. A strength score of up to 996 shows how deeply a person is embedded, with Mozart, Shakespeare, an

  • LLMs
  • Source: The Decoder
  • Published: 2026-06-19
  • Signal score: 5
  • 35 sources

Editor's take

A new website, "In the Weights," allows users to query large language models and determine if and how strongly they are represented in the AI's training data, quantified by a "strength score." This offers a novel lens into the proprietary datasets powering models like OpenAI's GPT-4 and Google's PaLM 2, moving beyond theoretical discussions of data provenance to empirical, user-driven exploration.

The implications extend to privacy, intellectual property, and the very definition of "knowledge" for these systems. For individuals, it raises questions about personal data usage and potential biases embedded within models. For developers, it provides a tool to probe the composition and potential blind spots of their own or competitors' models, hinting at the hidden biases and biases within the datasets used.

Future developments will likely focus on expanding the database of queryable individuals and AI models, and refining the "strength score" methodology. Crucially, understanding the correlation between this score and model behavior, such as factual recall or generation of personally identifiable information, will be key to assessing the practical impact of this newfound transparency.

Signal score: 5

This event was corroborated by 35 independent sources. The signal score weighs cross-source corroboration, recency, source weight and topic salience. How we rank stories.

More LLMs stories

  1. OpenAI acquires presentation startup NextSlide

    TechCrunch · 2026-08-08

    NextSlide says its team members are now working on ChatGPT.

  2. Claude Vs ChatGPT: How These AI Assistants Differ

    Engadget · 2026-08-08

    In a practical breakdown of how Claude and ChatGPT AI models differ, one tends to fall short when it comes to quality responses and overall user experience.

  3. Anthropic sets Claude Code to Auto Mode by default to protect developers from bad approvals

    The Decoder · 2026-08-08

    Starting August 14, Anthropic will make Auto Mode in Claude Code the default for Pro, Max, and Team plans. The company says it's safer.

  4. Responding to the next frontier of critical cyber capabilities

    OpenAI Blog · 2026-08-07

    OpenAI is sharing preliminary cybersecurity evaluations for Astra and the steps we’re taking to strengthen safeguards and security controls.

  5. OpenAI says it slowed Astra model development over security concerns

    TechCrunch · 2026-08-07

    OpenAI said this model, which is still in development, reached its "critical cybersecurity threshold," meaning it could independently identify and carry out cyberattacks against

  6. Presentation: Keeping ChatGPT Fast as AI Development Accelerates

    InfoQ · 2026-08-08

    Martin Spier explains how agentic workflows dramatically increase code change volume at OpenAI. He d