NewsNTech

Anthropic Accuses Alibaba of Largest Known Distillation Attack on Its AI Systems

6/25/2026

Anthropic has accused Alibaba of running a deliberate campaign to "brazenly" and "illicitly" extract artificial intelligence capabilities from its systems, according to a letter obtained by CNBC.

The letter characterizes the alleged operation as "the largest known distillation attack on Anthropic to date" — framing that signals Anthropic views this as a structural threat, not a one-off access violation.

What the Accusation Says The letter, which CNBC obtained and reported on, lays out Anthropic's position that Alibaba conducted a coordinated extraction effort rather than incidental or accidental misuse.

The choice of words matters here: "brazenly" implies scale visible enough not to hide; "illicitly" implies the conduct violated terms of service, law, or both.

Keep reading

Read the full story

Open on NewsNTech