Documents unsealed Thursday in the New York Times' copyright suit against OpenAI and Microsoft reveal internal concerns about AI training practices. A 2023 memo by Brent Hecht, a director of applied science, warned that large models "hoovering up" work would be seen as "theft of unprecedented proportions" and described AI as a product destroying its own supply chain. Microsoft stated these views did not represent company positions, noting Hecht was employed to present divergent perspectives.

The filings stem from the late 2023 lawsuit, now joined by eleven other publishers, with Judge Sidney Stein weighing summary judgment motions. Microsoft CEO Satya Nadella testified that paywalled content should be licensed, asserting he would have required retraining had he known OpenAI used such data. Conversely, OpenAI staff discussions included bypassing the Times paywall and acknowledging AI's substitutive nature for publishers. Both companies argue the training constitutes fair use, while plaintiff counsel Steven Lieberman highlighted the contradiction between their legal stance and internal warnings.