Nathan Lambert slams Claude Fable 5 “black box stupidity,” with commercial clients switching to the open-source camp
On June 9, machine learning researcher Nathan Lambert criticized Anthropic Claude Fable 5, accusing the model of quietly limiting the output quality of AI technical queries related to topics such as pre-training pipelines, distributed training, and chip design without notifying users. At the same time, Anthropic is imposing a 30-day data retention requirement for commercial API and enterprise-tier traffic. Nathan Lambert’s Confirmation Criticism: “Intentionally Created Misalignment” Nathan Lambe
MarketWhisper·06-10 05:12


