Ying Sheng

@ying11231

Cofounder & CEO @radixark @lmsysorg | @sgl_project (sglang.io) | Do it anyway | Be the light

radixark.com

Joined April 2021

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Ying Sheng
@ying11231
Dec 8, 2025
We've been running @radixark for a few months, started by many core developers in SGLang @lmsysorg and its extended ecosystem (slime @slime_framework , AReaL @jxwuyi). I left @xai in August — a place where I built deep emotions and countless beautiful memories. It was the best
RadixArk — Ship AI for All
From radixark.com
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Ying Sheng
@ying11231
Aug 19
I read it once and again. It is so beautiful and shines with our values. The miles to go, the friends we made ❤️
Shi Dong
@ShiDong14
Aug 19
Robert Frost knew all along: the beauty of RL. "The woods are lovely, dark and deep, But I have promises to keep, And Miles to go before I sleep, And Miles to go before I sleep."
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Ying Sheng
@ying11231
Aug 11
Well deserved one.
Tianqi Chen
@tqchenml
Aug 10
Our paper "XGBoost: A Scalable Tree Boosting System" received the Test of Time Award at #KDD2026! The honor belongs to the entire community that made @XGBoostProject today. I will be giving a talk tomorrow at the award session on the paper, history, and lessons learned
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Ying Sheng
@ying11231
Aug 3
5090 ordered, SGLang installed, H3 downloaded. 🤩
LMSYS Org
@lmsysorg
Aug 3
@MiniMax_AI H3 is live in SGLang Diffusion, with day-0 serving support 🎬 This open model matches Seedance 2.0 at 1/3 the cost, or $0 if you run it locally on 2x 5090 or 1 RTX 6000. With SGLang Diffusion, you can build visual concepts, motion design, e-commerce creatives,
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Ying Sheng
@ying11231
Aug 1
Byron! 🐐 🐐 🐐!!!
Byron Hsu
@hsu_byron
Aug 1
Scaling Kimi K3 on H200s with @sgl_project @lmsysorg While most discussion on X focuses on Blackwell, I thought it would be useful to share what we learned while tuning Kimi K3 for throughput-oriented workloads on H200s. - TP+EP beat DP+EP for K3. Only about 1/4 of its layers
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