9 October 2026
Anthropic says it is blocking mass copying of its Claude models
First reported
Last Week in AI ran this on , 4 days before the next source picked it up.
- Anthropic, the company behind the Claude chatbot, says rivals are copying its models at large scale.
- Copying works by sending huge numbers of queries through networks of fake accounts, then training a smaller model on the answers.
- Anthropic names Chinese firms Zhipu and Moonshot, and says the copied abilities could reach foreign military and surveillance systems.
Our read
Only one of the 30 tracked newsletters, Last Week in AI, covered this, with The Decoder also reporting it. Our archive's earlier Anthropic stories on this thread are about Claude product releases and a conduct rule, none of which involve copying or the named Chinese firms.
Earlier on this story
Written by Newskeryx from which newsletters covered this story and from our own archive.
How it was covered
Last Week in AIAndrey Kurenkov
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Reported by The Decoder