Artificial Atlas

Who is betting on what in AI, and against whom.

StepFun

Shanghai model lab counted among China's six 'AI tigers'; Step models.

HQ
Shanghai
Founded
2023
Web
stepfun.com
Camps
LLM scaling

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What it does

Shanghai Jieyue Xingchen, known as StepFun, is one of the six Chinese startups investors call the AI tigers, alongside Zhipu, Moonshot, MiniMax, Baichuan and 01.AI. Its Step Law paper on hyperparameter scaling is in the camp 1 scaling literature; CEO Daxin Jiang and chief scientist Xiangyu Zhang are on the roster.

Camp membership over time

  1. dates not recorded
    Scale next-token prediction
    One of China's six 'AI tigers'; Step models and the Step Law scaling work
    Sources StepFun Wikipedia 2026-09-05

Capital

No capital figures recorded yet.

People

DJDaxin JiangCo-founder and CEO

General sources

StepFun Wikipedia 2026-09-05