Zhili Feng

Research @OpenAI | prev: ML PhD @mldcmu | Research intern: @MSRNE, @Amazon, @BoschGlobal

[Zhili Feng @zhilifeng]

🥳🥳🥳I defended my PhD thesis today! Special thanks to my wonderful advisor @zicokolter and committee members @rsalakhu @gneubig @LesterMackey!

🎉🎉🎉I am joining @OpenAI as a researcher, super excited to keep working on frontier models and meet everyone in SF!

[Zhili Feng @zhilifeng]

@yidingjiang Bellymaxxing

[Zhili Feng @zhilifeng]

@harshit_sikchi Can you invite me to those parties?

[Zhili Feng @zhilifeng]

@bneyshabur @mo_norouzi @mirendil @a16z @kleinerperkins Congrats!!

[Zhili Feng @zhilifeng]

@suchenzang

[Zhili Feng @zhilifeng]

@YoungseogC @SoYeonTiffMin @MicrosoftAI Good job Young!!

[Zhili Feng @zhilifeng]

Pro will be GigachadGPT

[Tibo @thsottiaux]

Should we rename Codex to ChadGPT?

[Zhili Feng @zhilifeng]

@DimitrisPapail

[Zhili Feng @zhilifeng]

@steph_milani @fangf07 @mldcmu Happy birthday professor!

[Zhili Feng @zhilifeng]

@steph_milani

[Zhili Feng @zhilifeng]

Only 1.2 away from GPT-6️⃣.7️⃣

[OpenAI @OpenAI]

Introducing GPT-5.5

A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.

Now available in ChatGPT and Codex.

[OpenAI @OpenAI]

Codex for (almost) everything.

It can now use apps on your Mac, connect to more of your tools, create images, learn from previous actions, remember how you like to work, and take on ongoing and repeatable tasks.

[Sam Altman @sama]

I wrote this early this morning and I wasn't sure if I would actually publish it, but here it is:

https://t.co/7Dw9UFpeep

[Jacob Trefethen @JacobTref]

Alzheimer’s is one of medicine's hardest unsolved problems, and one of the most devastating.

At the OpenAI Foundation, we believe AI is well suited to its complexity. We're directing over $100M to scientists mapping the disease, designing drugs, & more.

I wrote about it here:
https://t.co/wOkiE78KUo

[Zhili Feng @zhilifeng]

👀👀👀

[OpenAI @OpenAI]

Introducing the OpenAI Safety Fellowship, a new program supporting independent research on AI safety and alignment—and the next generation of talent.

https://t.co/vAQKvf8KyO

[Tomek Korbak @tomekkorbak]

New OpenAI post: Can midtraining on docs about aligned AI bake in alignment priors for agents? We report an experiment where those priors are quickly washed away by RL and fail to generalize to agentic settings. But that cuts both ways: priors that AIs are misaligned fade too!

[Shuyan Zhou @shuyanzh36]

In 2023, WebArena took 7 grad students more than 6 months to build just 5 environments with 812 variable browser-use tasks.

Now, it takes under 10 hours and less than $100 per environment, with easy support for parallel generation.

Excited to introduce WebArena-Infinity: a scalable approach for automatically generating high-authenticity, high-complexity browser environments with verifiable tasks suitable for RL training and benchmarking.

Even strong open-source models that already achieve 60%+ success rates on WebArena and OSWorld complete fewer than 50% of tasks here.

Project page: https://t.co/tEtYkChMBt
Repo: https://t.co/lBg69T12xx 🧵 (1/n)

[Lester Mackey @LesterMackey]

Qiang Liu, Chris Oates, and I are writing a monograph on Probabilistic Inference and Learning with Stein’s Method, and we’d love to get your feedback on the first draft

[OpenAI @OpenAI]

Are you up for a challenge?

https://t.co/GNryIDhnut

[Zhili Feng @zhilifeng]

@NiJinjie @GoogleDeepMind @YiTayML @quocleix congrats!