Chinese AI labs shift to OpenAI's GPT-6 Astra after Anthropic tightens defenses

Chinese AI labs including DeepSeek and Moonshot AI are primarily using OpenAI's GPT-6 Astra to train their latest models, including Kimi K3.1 Pro and V4.1-Flash 1017, after Anthropic tightened Claude's defenses. These labs rely on extracting the models' hidden reasoning steps, a process known as distillation, which Anthropic says has reduced data leakage by 90 to 99 percent.