Artificial Intelligence
Professor Sun Maosong giving his talk at the 2026 X-AGI Conference.
Timeline
A chronological record
Gallery
Gallery
Autumn Arrives · Fallen Leaves · Strangers by the Moat · Corner Tower Mirrored in the Moat
4 photographs
Gallery
Dancing in the Square · Setting Out
2 photographs
Gallery
Yufeng Pagoda above the Willows · Eye to the Viewfinder
2 photographs
Gallery
Day One with My A7M5
6 photographs · The day my A7M5 arrived: unboxed in the afternoon, then straight out to the Summer Palace for mandarin ducks and Willow Bridge lit at nightfall.
Blog
Generation Schedules for Diffusion Language Models | What Kind of DLM Do We Actually Want?
Diffusion language models inherit a recipe from images, but language has no natural generation space in which noise, distance, frequency, and meaning line up. A language-native DLM needs both a structured generation space and a semantic generation schedule.
Site Update
Added the Gallery
A home for my photographs, with themes, tags, and collections, and a full-screen viewer for each picture and its details.
Site Update
Added the Relationship page
A map of the people I have studied and worked with, and how they connect to one another.
Blog
Tsinghua Summer Camp
The Tsinghua summer camp, and that dreamlike summer of 2022
Media
Lin vs. Li | 2017 All England Open Final
Lin Dan and Lee Chong Wei meet in the 2017 All England Open final.
Media
Whynot TV: Tianqi Chen
陈天奇谈初心、理想主义，以及 XGBoost、MXNet、TVM、MLC 背后的机器学习系统之路。
Media
Lin Dan | 2017 Retirement Interview
Lin Dan reflects beyond gold medals, thanking the great rival whose pressure helped shape the champion he became.
Media
The Rise of SpaceX: Everything for Mars
A look at SpaceX's Mars-driven rise, from Falcon 1 failures to Starbase and a new space infrastructure system.
Media
SpaceX | Starship - Test Like You Fly
A SpaceX Starship video focused on flight-like testing, the development philosophy behind rapid iteration, and preparing hardware for real mission conditions.
Media
Starship | Fifth Flight Test
Starship's fifth integrated flight test, another step in SpaceX's campaign to mature the vehicle through repeated full-system launches.
Media
Starship | Fourth Flight Test
Starship's fourth integrated flight test, following SpaceX's continued iteration across launch, stage separation, entry, and recovery objectives.
Media
Starship | Second Flight Test
Starship's second integrated flight test, showing SpaceX's rapid iteration after the first launch and the next step toward a reusable heavy-lift launch system.
Media
Starship | Seventh Flight Test
Starship's seventh integrated flight test, documenting the next launch in SpaceX's iterative Starship development program.
Media
Starship | Sixth Flight Test
Starship's sixth integrated flight test, extending the sequence of high-tempo development flights for the Starship and Super Heavy system.
Media
Starship | Tenth Flight Test
Starship's tenth integrated flight test, part of SpaceX's continuing sequence of Starship launch and recovery demonstrations.
Media
Starship | Third Flight Test
Starship's third integrated flight test, continuing SpaceX's rapid iteration toward orbital-class operations and reusable heavy-lift launch capability.
Media
Whynot TV: Jiayi Weng
A Whynot TV profile of Jiayi Weng, tracing his path from open source and tool-building to OpenAI, where his work spans reinforcement learning, post-training, infrastructure, and major model releases.
Blog
SAT-Mask: Self-Aligned Trajectory Masking for Diffusion Language Models
SAT-Mask aligns masked diffusion language model training with inference trajectories by replacing random mask states with self-aligned, confidence-guided rollout states.
Media
Starship | First Integrated Flight Test
SpaceX's first fully integrated Starship flight test, capturing the early full-stack attempt to launch the Starship and Super Heavy system together.
Media
Whynot TV: Danfei Xu
A Whynot TV conversation with Danfei Xu on robotics research, embodied intelligence, and building systems that learn from real interaction.
Site Update
Rebuilt my website
I rebuilt my personal website and look forward to making it better and better.
Publication
Efficient Diffusion Language Model Training via Self-Aligned Trajectory Masking
In the 40th Conference on Neural Information Processing Systems, 2026
Gallery
Afterglow on the Way Home
Dusk settles over still water and distant hills, seen from the high-speed train on the way home.
Gallery
First Visit to Qinhuangdao
2 photographs · Morning light, a lighthouse, and life along the shore on my first visit to Qinhuangdao.