Fotis Chantzis

Sam Altman

@sama

AI is cool i guess

Joshua Achiam

@jachiam0

Freedom, flourishing, and abundance. Chief Futurist @openai. Main author of http://spinningup.openai.com

Jerry Tworek

@MillionInt

CEO and co-founder of Core Automation former VP of RL @ OpenAI : reasoning models, o3, o1, GPT4, ChatGPT, Codex, RL for robots cautious AI optimist

Rowan Zellers

@rown

multimodal @thinkymachines. I also like to climb rocks and throw pottery. http://rowanzellers.com (he/him)

will depue

@willdepue

ex @openai (sora 1 & 2, posttraining o3/4o, pretraining moonshots)

rapha

@rapha_gl

making models programmable @ openai

Chelsea Sierra Voss

@csvoss

engineeress ✨ Member of Technical Staff @openai // board $QCLS // past @pilothq, @sendwaveapp, @khanacademy, CS/math @MIT, 2x IBO gold

Isa Fulford

@isafulf

research @openai

Shuchao Bi

@shuchaobi

Research at Meta Superintelligence Labs, RL/post-training/agents; Previously Research at OpenAI on multimodal and RL; Opinions are my own.

Yo Shavit

@yonashav

policy for v smart things @openai. Past: CS PhD @HarvardSEAS/@SchmidtFutures/@MIT_CSAIL. Tweets my own; on my head be it.

Ariel Herbert-Voss

@adversariel

Founder @RunSybil. likes: offsec, LLMs, and dumb memes. prev: research scientist @OpenAI / CS PhD @Harvard / @defcon AI Village

Jimmy Apples 🍎/acc

@apples_jimmy

Wagmi. 2025. As featured in Bloomberg. As quoted by Nobel Prize winner Demis Hassabis. As mentioned on the Lex Fridman Podcast💺

Gretchen Krueger

@GretchenMarina

Over at Bluesky. Researcher affiliated w @BKCHarvard, Volunteer @evitable. Previously @openai @ainowinstitute. Views mine. #justdontbuildagi #talktomenotchatgpt

Steven Heidel

@stevenheidel

API @OpenAI | 🏳️‍🌈 he/him

Lachy Groom

@lachygroom

it's pronounced locky. lachygroom@gmail.com. π.com

Ashvin Nair

@ashvinair

RL foundations @cursor_ai. Prev: o1, o3, Code Interpreter @openai, 9 years learning to poke by poking at UC Berkeley

Tomek Korbak

@tomekkorbak

agent safety @openai | previously: @AISecurityInst @AnthropicAI @nyuniversity @SussexUni

Brydon Eastman

@brhydon

🇨🇦 Mathematician (heavy on the ish) @thinkymachines Prev. MTS @OpenAI; PhD @WaterlooMath Certified wife guy, featured twice in Lego Magazine ©

girish sastry

@girishsastry

AI & other things. I used to work at OpenAI on Policy Research.

Jason Wolfe

@w01fe

alignment and the model spec @OpenAI (opinions are my own)

Matthew Berman

@MatthewBerman

The future is bright.

Kelly Buchanan

@ekellbuch

Postdoctoral Fellow @Stanford with @HazyResearch and @Scott_linderman. Working on 🤖🧠 PhD @Columbia @ZuckermanBrain @GoogleAI

DANΞ

@cryps1s

CISO @OpenAI | Ex-CISO @PalantirTech | Occasional Shitposter | 🇺🇸 All views are my own, not my employer. Duh. (Tweets == 30d retention)

fouad

@fouadmatin

@openai codex, cyber, research, security

Matt Knight

@embeddedsec

Engineer-at-Large | Former CISO and VP @OpenAI

Dave

@dece

Aliisa

@aliisarosenthal

former head of sales @openai, current investor @acrewcapital. fine-tuning two small models with @hodgessam.

Aris Konstantinidis

@ariskonstant

strategy at @invtechinc | formerly strategy & biz ops at @OpenAI and @Cohere | alum @stanfordgsb