Anthropic details Alibaba adversarial distillation: 151M exchanges aimed at Qwen
On 10 September 2026 Anthropic published a report on unauthorized distillation campaigns. The largest, attributed to Alibaba, generated 151 million exchanges (May–July) via ~3,500 accounts with a fixed prompt to extract Claude chain-of-thought for the Qwen family. Other campaigns involve Moonshot AI and DeepSeek; observed total is nearly 200 million exchanges.