Ars Technica
Anthropic says Alibaba must be punished for largest Claude cloning attack
Thursday, June 25, 2026
Title: Anthropic alleges Alibaba used multiple accounts to access Claude API
Anthropic has stated that Alibaba accessed its Claude API through approximately 25,000 accounts, resulting in 28.8 million exchanges. Anthropic characterizes this activity as unauthorized use of its service. The company has not disclosed what actions it intends to take or has taken in response.