AI Daily — May 2, 2026
2026-05-02
www.technologyreview.com
Musk v. Altman week 1: Musk admits xAI distills OpenAI's models
In the opening week of the Musk v. OpenAI trial, Musk testified that Altman and Brockman deceived him into funding OpenAI, while also acknowledging under questioning that xAI has used distillation from OpenAI's models — a significant admission with potential IP implications. The trial is shaping up as a high-stakes examination of OpenAI's transition from nonprofit to capped-profit structure and what obligations that creates.
rss.arxiv.org
When Your LLM Reaches End-of-Life: A Framework for Confident Model Migration in Production Systems
Researchers present a Bayesian framework for migrating production LLM systems at end-of-life, calibrating automated evaluation metrics against human judgments to enable statistically confident model comparisons with limited manual annotation. The approach was validated on a commercial QA system handling 5.3M monthly interactions across six regions, evaluating correctness, refusal behavior, and style adherence. The methodology offers a reproducible, principled path for enterprises needing to swap underlying models without regressing on real-world performance.