❯ DeepSeek Registers ‘DeepSeek Harness Team’ Official Account Under Beijing DeepSeek

ACCOUNT FIRSTDeepSeek has registered the WeChat official account “DeepSeek Harness Team,” with the verified entity being Beijing DeepSeek Artificial Intelligence Basic Technology Research Co., Ltd. Public business registration records show Hangzhou DeepSeek holds a 100% stake in the company. The account has not yet published any content.

THE TEAMThe Harness team’s mission is to turn model capabilities into usable agent products, benchmarking against Anthropic’s Claude Code. The core formula is summarized as “model + harness = agent.” Team lead Cui Tianyi joined in March this year, after nearly nine years in quantitative research at Jane Street Hong Kong, and later co-founded TSY Capital.

STILL HIRINGIn June, Cui said publicly that the department is “very understaffed” and that he interviews every day. Hiring spans three role categories — Harness researchers, engineers, and product managers — all based in Beijing. A lab known for its papers and models is now building a product team and registering an official account, putting engineering and distribution squarely on the table. For Chinese startups building coding agents, the moat of self-developed base models is narrowing, and competition will bear down directly on engineering and distribution efficiency.

▪ SIGNALBetween shipping a model and shipping a product sits an organization that can interview every day and open an official account.