Xuechen Li
@lxuechenAI @xai. PhD @Stanford. Past @UofT @GoogleAI @MSFTResearch @Vectorinst. I go by Chen.
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simple approaches that scale well with more data and more compute ultimately wins
Three components of Reasoning for AI: 1. Foundation (Pre-training) 2. Self-improvement (RL) 3. Test-time compute (planning). @xai will soon have the best foundation in the world - Grok3. Join us to advance reasoning to the next-level! 🔥🔥 grnh.se/ddabc23e7us
Come 🧑🍳 with us! Exclusive access to Grok and X APIs Apply by October 7 x.ai/hackathon
We are excited to bring together a group of exceptional engineers and product builders who are intrigued by our mission to build maximally truth-seeking AI Join our open house to meet our team, learn more about xAI, and enjoy a fun evening brought you by the creators of the…
This weekend, the @xAI team brought our Colossus 100k H100 training cluster online. From start to finish, it was done in 122 days. Colossus is the most powerful AI training system in the world. Moreover, it will double in size to 200k (50k H200s) in a few months. Excellent…
Grok 2 mini is now 2x faster than it was yesterday. In the last three days @lm_zheng and @MalekiSaeed rewrote our inference stack from scratch using SGLang (github.com/sgl-project/sg…). This has also allowed us to serve the big Grok 2 model, which requires multi-host inference, at a…
Have been post-training Grok2 for a while and am excited to share that it’s officially out!! We’ve been testing early versions of Grok2 on LMSYS chatbot arena under the names of sus-column-r and column-r, and the models perform well! @xai is still a super small team (an order…
how june started & how it’s going come 🧑🍳 with us at xAI & 𝕏 if you like building & running the biggest computers in the world! x.ai/careers careers.x.com
When LLMs are unsure, they either hallucinate or abstain. Ideally, they should clearly express truthful confidence levels. Our #ICML2024 work designs an alignment objective to achieve this notion of linguistic calibration in *long-form generations*. arxiv.org/abs/2404.00474 🧵
Do you want to work for @xai in London? Now you can. We're looking for software engineers. Apply if you want to get stuff done, work with smart people, and get grilled in one of my coding interviews. Backend & data: boards.greenhouse.io/xai/jobs/42769… Full-stack: boards.greenhouse.io/xai/jobs/42769…
Are you hiring top AI talent? Here is a list of Ph.D. students affiliated with @StanfordAILab who are on the industry and academic job markets this year! This list showcases diverse research areas and 41% of these graduates are URMs! Check it out: ai.stanford.edu/blog/sail-grad…
The Conference on Language Modeling 🦙 (colmweb.org) has the mission of "creating a community of researchers with expertise in different disciplines, focused on understanding, improving, and critiquing the development of LM technology." 🧵 Here are 17 papers from 17…
Yaron @lipmanya and I are hiring a PhD intern for FAIR EMEA! If you're interested in fundamental research on generative modeling and related topics, feel free to reach out: {rtqichen,ylipman}@meta.com *The position is in Paris.* Dates are flexible. metacareers.com/jobs/140947795…
Starting the year with a small update, phi-2 is now under MIT license, enjoy everyone! huggingface.co/microsoft/phi-2
I'm teaching a new course on AI Alignment this term at the University of Toronto. The first half will cover idealized models of future AI systems (optimal planners, universal induction, etc.), and the second half will cover practical alignment techniques in the context of LLMs.
I’m recruiting PhD students and there are still a few days left to apply! If you’re excited about working at the intersection of HCI and AI, come join my new group @MITEECS Please submit at gradapply.mit.edu/eecs by 12/15!
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