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DeepSeek

Chinese AI lab based in Hangzhou, spun out of hedge fund High-Flyer and founded by Liang Wenfeng. Known for low-cost, high-performance open-weight large language models (DeepSeek-V3, R1) that rattled Western AI markets in early 2025.

Track Record

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DeepSeek allegedly routed millions of user queries to Anthropic's Claude without disclosure, prompting Chinese CAC probe

Sep 10, 2026

Anthropic reported that DeepSeek both distilled Claude's outputs to train its own models and covertly rerouted user queries to Claude for answers, without telling users they were talking to a third-party US model. Anthropic said DeepSeek sent over 12.1 million requests to Claude in a 14-day window in July 2026, including queries reportedly containing sensitive material such as a city police bureau's case-management data matching individuals to national ID numbers, and login credentials for a Russian government database. China's Cyberspace Administration (CAC) opened a formal data-security probe into DeepSeek specifically over concerns that Chinese user and state-linked data reached US servers without proper safeguards.

- User Privacy- Corporate Transparency- Data Security
Sources: South China Morning Post(opens in new tab)· Decrypt(opens in new tab)