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Stylised avatar of Jiang Yifei

Jiang Yifei

Long-tenured contributor

Based in Shenzhen
Node-cell hilbert-13
ORCID 0000-8809-0765-9377

Research

Yifei is a co-author of the mechanistic-circuits-at-frontier-scale result and one of the contributors who developed ab-circuits, the open-source library that the result is bundled with. His specific contribution centres on the circuit-composition machinery — the algorithmic and empirical work that establishes which circuits compose and which do not.

He has been with alphabell since 2019 and works closely with Karima Belkadi on the axis's overall research agenda. He is one of the most active reviewers on the cross-axis methodology review pool and has a habit of asking, on first read, 'what is the smallest circuit that produces this behaviour.'

Yifei is based in Shenzhen and works closely with two universities in the region. He maintains a Chinese-language tutorial sequence on mechanistic interpretability that several Chinese-speaking university courses now use.

Background

Ph.D. computer science, Tsinghua University, 2014. M.Sc. at Peking University.

Prior to alphabell: Tsinghua; Halcyon Safety; Praxis AI Studies.

Selected publications

Full publications index →

Recent talks

  • Circuits as a unit of interpretability, ICLR 2025
  • What composes and what doesn't, NeurIPS 2024
Working with

Jiang is currently part of node-cell hilbert-13, working under the Interpretability & alignment research axis. The cell is open to substantive correspondence from researchers working on adjacent problems; route requests through hilbert-13@alphabell.com or directly to Jiang at jiang-yifei@alphabell.com.