@10xmylife: Cui Tianyi has joined DeepSeek! When I saw his blog during undergrad, I was amazed—how could someone be so talented? Looking forward to DeepSeek's products in the future.
Summary
Cui Tianyi (former quantitative specialist at Jane Street) joined DeepSeek in March 2025 as the head of the newly formed Harness team, developing a desktop agent product that competes with Anthropic's Claude Code.
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Cached at: 05/22/26, 05:51 AM
Cui Tianyi has joined DeepSeek. I remember reading his blog during my undergraduate years and being absolutely amazed—how could someone be this brilliant? Looking forward to DeepSeek’s products in the coming months.
Weird Thoughts (@0xLogicrw): Cui Tianyi, former co-founder of quantitative investment firm TSY Capital and a 9-year veteran at Wall Street quant giant Jane Street, officially joined DeepSeek in March this year. He now leads the newly established Harness team, spearheading the development of a desktop Agent product that directly competes with Anthropic’s Claude Code.
During his undergraduate studies, Cui Tianyi won the ACM competition six times.
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