Simon Guo @simonguozirui
CS PhD student @Stanford | 🎓 @Berkeley_EECS | prev pre-training @cohere & built things at @ @anyscalecompute @nvidia simonguo.tech Palo Alto, CA Joined September 2014-
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This was a fun collaboration! Tdlr: ReAct is not all you need -- priming LMs to reason/plan intermittently in agentic tasks can improve the sample efficiency of multi-step RL Bonus: LM agents trained with this recipe can be steered with human-written plans at test-time
This was a fun collaboration! Tdlr: ReAct is not all you need -- priming LMs to reason/plan intermittently in agentic tasks can improve the sample efficiency of multi-step RL Bonus: LM agents trained with this recipe can be steered with human-written plans at test-time
Too often, AI and energy conversations happen in separate rooms. That gap inspired @themeghamachine and I to launch the Watt & Why Series ⚡ Excited to kick this off and big thanks to @CrusoeAI and @SemiAnalysis_ for co-hosting the first session. A space that brings everyone…
Too often, AI and energy conversations happen in separate rooms. That gap inspired @themeghamachine and I to launch the Watt & Why Series ⚡ Excited to kick this off and big thanks to @CrusoeAI and @SemiAnalysis_ for co-hosting the first session. A space that brings everyone…
(1/n) Check out our new paper: "Fantastic Pretraining Optimizers and Where to Find Them"! >4000 models to find the fastest optimizer! 2× speedups over AdamW? Unlikely. Beware under-tuned baseline or limited scale! E.g. Muon: ~40% speedups <0.5B & only 10% at 1.2B (8× Chinchilla)!
you can now clip your favourite scenes on @netflix easily one of the coolest prototypes I got to build this year
Always wonderful to spend time chatting chips with Jon Y! @asianometry
Introducing the Environments Hub RL environments are the key bottleneck to the next wave of AI progress, but big labs are locking them down We built a community platform for crowdsourcing open environments, so anyone can contribute to open-source AGI
9th to 11th graders, apply to the (free!) AddisCoder 2026 4-week summer camp by the December 31st deadline to learn algorithms and programming. Teaching assistant volunteers can also apply. Camp dates: to be determined, 4 weeks in summer 2025. Link: addiscoder.com/#apply
My Google colleagues Norm Jouppi & Sridhar Lakshmanamurthy gave a talk today at Hot Chips on TPUv7 ("Ironwood"). The TPUv7 system offers 9216 chips / pod (42.5 exaflops of fp8), but we can scale across many of these pods to provide multiple zettaflops.
My Google colleagues Norm Jouppi & Sridhar Lakshmanamurthy gave a talk today at Hot Chips on TPUv7 ("Ironwood"). The TPUv7 system offers 9216 chips / pod (42.5 exaflops of fp8), but we can scale across many of these pods to provide multiple zettaflops.
Can AI solve open problems in math, physics, coding, medical sciences & beyond? We collected unsolved questions (UQ) & tested frontier LLMs. Some solutions passed expert validation…
New paper! We explore a radical paradigm for AI evals: assessing LLMs on *unsolved* questions. Instead of contrived exams where progress ≠ value, we eval LLMs on organic, unsolved problems via reference-free LLM validation & community verification. LLMs solved ~10/500 so far:
The new semester is here at CMU, excited to co-teach with @Tim_Dettmers , to offer our fun course again on "Build Your Mini-PyTorch (needle) from scratch, then build neural networks on top". (Deep Learning Systems) Check out dlsyscourse.org to learn more
TogetherAI's Chief Scientist @tri_dao announced Flash Attention v4 at HotChips Conference which is up to 22% faster than the attention kernel implementation from NVIDIA's cuDNN library. Tri Dao was able to achieve this 2 key algorithmic changes. Firstly, it uses a new online…
✨ Excited to share a few life updates! 🎤 My TED Talk is now live! I shared the origin story of Evo, titled: "How AI could generate new life forms" TED talk: ted.com/talks/eric_ngu… ✍️ I wrote a blog post about what it’s *really* like to deliver a TED talk blog:…
just a friendly reminder that our first session of the @GPU_MODE x @scaleml series starts at 1:15pm ET / 10:15am PT today on the GPU MODE YouTube channel! the first day will feature a talk by the amazing @sewon__min on FlexOlmo, so you don't want to miss it :)
The proprietary frontier models of today are ephemeral artifacts. Essentially very expensive sandcastles. Destined to be washed away by the rising tide of open source replication (first) and algorithmic disruption (later).
Want to contribute this weekend to open-source AGI? Join us in creating rl environments using github.com/willccbb/verif… Ping @willccbb, @johannes_hage or me with what you want to build - we'll send you early access to the hub, and a list of bounties for environments to build.
Want to contribute this weekend to open-source AGI? Join us in creating rl environments using github.com/willccbb/verif… Ping @willccbb, @johannes_hage or me with what you want to build - we'll send you early access to the hub, and a list of bounties for environments to build.
open-source rl environments might be the most important piece for ensuring open source agi
open-source rl environments might be the most important piece for ensuring open source agi
We can now train AI inside the mind of another AI. 🤯 🌍 Our world model, Genie 3, imagines and generates new worlds on the fly. 🤖 Our embodied agent, Sima, is dropped in and learns to navigate them autonomously. The entire loop—from the environment to the action—is generated…
Alishba Imran @alishbaimran_
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cindo 🍓 @cindohahahaha
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mathurah @mathurahravi
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. @ParikPatelCFA13
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guo @guo_dini
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darya @daryakaviani
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cindo 🍓 @cindohahahaha
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AK @_akhaliq
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Shirley Ho @cosmo_shirley
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Hot Aisle @HotAisle
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