Phoebe Thacker @phoebethacker
Human Data @OpenAI, Ex Data @ Google DeepMind London, UK Joined December 2009-
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Just the small things: The Retry button just got smarter in ChatGPT. Request some common edits, or make any change without cluttering the conversation.
GPT-5 is here. Rolling out to everyone starting today. openai.com/gpt-5/
I'm celebrating 1 year at OpenAI today... Feels like 5 👀.
I'm celebrating 1 year at OpenAI today... Feels like 5 👀.
we have a ton of stuff to launch over the next couple of months--new models, products, features, and more. please bear with us through some probable hiccups and capacity crunches. although it may be slightly choppy, we think you'll really love what we've created for you!
🤝 @ChatGPTapp, meet Notion.
📣 Excited to share our real-world study of an LLM clinical copilot, a collab between @OpenAI and @PendaHealth. Across 39,849 live patient visits, clinicians with AI had a 16% relative reduction in diagnostic errors and a 13% reduction in treatment errors vs. those without. 🧵
Evaluations are essential to understanding how models perform in health settings. HealthBench is a new evaluation benchmark, developed with input from 250+ physicians from around the world, now available in our GitHub repository. openai.com/index/healthbe…
Shopping We’re experimenting with making shopping simpler and faster to find, compare, and buy products in ChatGPT. ✅ Improved product results ✅ Visual product details, pricing, and reviews ✅ Direct links to buy Product results are chosen independently and are not ads.…
We’re releasing PaperBench, a benchmark evaluating the ability of AI agents to replicate state-of-the-art AI research, as part of our Preparedness Framework. Agents must replicate top ICML 2024 papers, including understanding the paper, writing code, and executing experiments.
4o image generation has arrived. It's beginning to roll out today in ChatGPT and Sora to all Plus, Pro, Team, and Free users.
Sora has arrived in the EU and the UK.
Deep research is now rolling out to all ChatGPT Plus, Team, Edu, and Enterprise users 🍾
We worked with a community of hundreds of experts who helped train deep research. If you're interested in contributing your expertise to future models, you can express interest here: docs.google.com/forms/d/e/1FAI…
Introducing SWE-Lancer: our most realistic coding benchmark to date. $1M in real-world, full-stack freelance SWE tasks, each taking freelancers >21 days to complete on avg. Still some limitations, but better than evals we had before. Congrats @samuelp1002 @michelelwang!
Introducing SWE-Lancer: our most realistic coding benchmark to date. $1M in real-world, full-stack freelance SWE tasks, each taking freelancers >21 days to complete on avg. Still some limitations, but better than evals we had before. Congrats @samuelp1002 @michelelwang!
OPENAI ROADMAP UPDATE FOR GPT-4.5 and GPT-5: We want to do a better job of sharing our intended roadmap, and a much better job simplifying our product offerings. We want AI to “just work” for you; we realize how complicated our model and product offerings have gotten. We hate…
What do you want to create next?
day 13 of shipmas: special sora bonus🎄✨ our GPUs get a little less busy during late december as people take a break from work, so we are giving all plus users unlimited sora access via the relaxed queue over the holidays! enjoy creating!
if you are a safety researcher, please consider applying to help test o3-mini and o3. excited to get these out for general availability soon. extremely proud of all of openai for the work and ingenuity that went into creating these models; they are great.
Today, we shared evals for an early version of the next model in our o-model reasoning series: OpenAI o3

Michiel Bakker @bakkermichiel
2K Followers 822 Following LLMs and AI Safety. Assistant Prof @MIT. Research Scientist @GoogleDeepMind. CS PhD @MIT. He/him.
summerfieldlab @summe... @summerfieldlab
8K Followers 849 Following Investigating the mechanisms that underpin human learning, perception and cognition, headed by Chris Summerfield
j3d3 @rivoli23437649
66 Followers 2K Following music, poetry, talking therapies, AI, words (Emerson, Kees, Sheldrake, Stanley). 🇪🇺
Louis on AI @louisAI___
0 Followers 328 Following Mutating into an Al Integrator - Forever a creature shaped by Design.
Mudong @zzzz814699
0 Followers 23 Following PhD in Statistics Meta - Llama Ex-GS Portfolio Manager | Generative AI
Emmanuel @TheLuckyEmmy
42 Followers 400 Following I am Emmanuel. Reference: Isaiah 7:14. Reference: The Parable of the Tenants — Jesus Christ. Reference: Like a Thief in the Night — Jesus Christ. Reference: 😈.
Michael Neuvirth @LetsGoCure
2K Followers 614 Following Billions of people dream of cures for Invisible Illnesses. 🪄We meld patient intelligence with AI to make their dreams come true. 🚀 Hang on - Cures are coming!
Gustavs Zilgalvis @GZilgalvis
1K Followers 1K Following building @fiftyyears // prev. @stanford @lux_capital @googledeepmind
Hans Vandamme @hansjvandamme
73 Followers 448 Following
Aviral Agarwal @AviralAgarwal0
7 Followers 175 Following 19 | @utexasmccombs | incoming @bcg | prev. product @servicenow
Greg Gambatto @GregoireGambatt
5K Followers 1K Following CEO @Ctrlg_com, coding data for models (Rust/Go/Zig). Managing a great OSS community with @OnlyDust_com
Михаил Шува... @mvshudy
7 Followers 390 Following
axyl @axyl95901083
23 Followers 1K Following
Sayanta Banerjee @DevSayanta
1K Followers 5K Following Docs @keysight || Ambassador @Webex @Suse @supertokensio @auth0 || 2021 Top Contributor Award @Mattermost || Prev @NirmataCloud @civocloud @Sawolabs
Spencer Papay @spencerpapay
246 Followers 160 Following product at @openai // prev. @scale_AI, @citadel
Lucas Song @Johnsong1022
244 Followers 3K Following
Daily Wisdom @Mohamed4439970
75 Followers 2K Following Your daily dose of truth & wisdom. Stay inspired 🌟
Michael Barry @bluwubarry
167 Followers 2K Following
Miles Brundage @Miles_Brundage
62K Followers 12K Following AI policy researcher, wife guy in training, fan of cute animals and sci-fi, Substack writer, stealth-ish non-profit co-founder
Alexey Bokov ❤️ �... @abokov
1K Followers 5K Following Hyperscale technology & strategy @ Splunk. Making things happen, beard owner and running fan. This twitter reflects only for my personal opinion
Thomas Power @thomaspower
275K Followers 109K Following Founder BIP100 Club London with @pennypower @rosspower @tjpower @hannahipower please DM @whatsapp +447875695012
A. Thorbjornson @NordicNeuralNet
34 Followers 283 Following Machine Learning. We're definitely out of distribution.
Janne Anttila @janneanttila
1 Followers 439 Following
🇺🇦💕🇷🇺 ... @iluvvietnam7
672 Followers 5K Following Daughter of Vietnam 🇻🇳| Lover of Nations 💕❤| Penguin and Cat Lover 🐧🐱🥰 |Vietnamese Communist|Patriot first|Games and Politics |Programmer(C++ and JS)|
xy @xymadxy
1K Followers 6K Following
TeslaFanboy @bullishboy92
392 Followers 2K Following $tsla investor, TESLA lover. Twitter spaces allow for free therapy sessions.
matt mahar @mattmahar
196 Followers 2K Following
Adi Sharma @adityas129
857 Followers 594 Following past: worked @affirm studied @uwaterloo started @socraticainfo
Arnab @fantacylover
5K Followers 5K Following Experienced BIM-MEP Engineer with a demonstrated history of working in the AEC Industry. Strong engineering professional skilled in AutoCAD, fabrication, Revit,
Carlos Garcia @CarlosGarcia_h
250 Followers 2K Following Rpgs, manga, Final fantasy is life. Tonterias y memes para aguantar.
Bill Leoutsakos @Bi11Leou
130 Followers 525 Following Computer Engineering @cambridge_uni | ex-ML Engineer @Cosine_AI | Eurotech Fellow
TheValueist @TheValueist
2K Followers 4K Following L/S equity in tech and energy. ISO convexity. Path dependence matters. Sizing via Kelly Criterion. Results never lie. Not financial advice.
Dr.Dre @JCDenton09
184 Followers 5K Following
Omar Ortiz @ApexPM
67 Followers 186 Following
g^X @algorithms77
113 Followers 5K Following Researcher studying intelligence both artificial and biological. Seeking to understand intelligence and how we may enhance it
Ricco M @RiccoSJCA
86 Followers 570 Following Not politically affiliated just go with right & wrong. Believe that both ASI & NHI disclosure will reach us by 27' & this year 25' is our last year of normalcy.
Michiel Bakker @bakkermichiel
2K Followers 822 Following LLMs and AI Safety. Assistant Prof @MIT. Research Scientist @GoogleDeepMind. CS PhD @MIT. He/him.
Nando de Freitas @NandoDF
105K Followers 776 Following Some projects I was lucky to be part of AlphaGo tuning, AlphaCode, Gato, ReST, r-Gemma, Imagen3, Veo, Genie, MAI. Ex Berkeley, UBC, Oxford Prof, Google DeepMind
summerfieldlab @summe... @summerfieldlab
8K Followers 849 Following Investigating the mechanisms that underpin human learning, perception and cognition, headed by Chris Summerfield
Jan Leike @janleike
114K Followers 332 Following ML Researcher @AnthropicAI. Previously OpenAI & DeepMind. Optimizing for a post-AGI future where humanity flourishes. Opinions aren't my employer's.
Oriol Vinyals @OriolVinyalsML
184K Followers 86 Following VP of Research & Deep Learning Lead, Google DeepMind. Gemini co-lead. Past: AlphaStar, AlphaFold, AlphaCode, WaveNet, seq2seq, distillation, TF.
Demis Hassabis @demishassabis
488K Followers 146 Following Nobel Laureate. Co-Founder & CEO @GoogleDeepMind - working on AGI. Solving disease @IsomorphicLabs. Trying to understand the fundamental nature of reality.
British Airways @British_Airways
1.4M Followers 85K Following Official British Airways X account. For help, please get in touch with us on Facebook, Instagram or visit: https://t.co/GpmEQmqJkr
Spencer Papay @spencerpapay
246 Followers 160 Following product at @openai // prev. @scale_AI, @citadel
Joana Carrasqueira @jocarrasqueira
5K Followers 774 Following DevRel Lead @GoogleDeepMind • Pharmaceutical Scientist & MBA • 🇵🇹 in 🇺🇸 • My views
nikki @nikki2k_
543 Followers 298 Following
DANΞ @cryps1s
14K Followers 445 Following CISO @OpenAI | Ex-CISO @PalantirTech | Occasional Shitposter | 🇺🇸 All views are my own, not my employer. Duh. (Tweets == 30d retention)
Jack Clark @jackclarkSF
88K Followers 5K Following @AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ https://t.co/3vmtHYkIJ2 Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures
Psyho @FakePsyho
25K Followers 366 Following Game Designer; Problem Solver; past: OpenAI (Dota), Pro Competitive Programmer, Poker
Lukasz Kaiser @lukaszkaiser
9K Followers 78 Following
Garry Tan @garrytan
602K Followers 5K Following President & CEO @ycombinator —Founder @Initialized—designer/engineer who helps founders—San Francisco Dem accelerating the boom loop—e/acc—technology brother
Yoram Bachrach @yorambac
3K Followers 7K Following Research Scientist at Meta (prev Google DeepMind and Microsoft Research). Working on LLM Agents and Multi-Agent Systems.
Hyung Won Chung @hwchung27
38K Followers 301 Following AI Research Scientist @Meta Superintelligence Labs. Past: @OpenAI / @Google Brain / PhD @MIT
Manuel Kroiss @makro_ai
15K Followers 148 Following
Jeff 🇺🇸/acc @destinyiskind
959 Followers 294 Following Founder of @VolmLabs (っ▀¯▀)つ 💻 // prev @ openai @ microsoft // @ stanford
Shuchao Bi @shuchaobi
13K Followers 688 Following Research @Meta Superintelligence Labs, RL/post-training/agents; Previously Research @OpenAI on multimodal and RL; Opinions are my own.
Hongyu Ren @ren_hongyu
23K Followers 693 Following research @meta superintelligence. CS PhD @stanford. prev @openai, led the development of o3-mini and o1-mini.
Tejal Patwardhan @tejalpatwardhan
5K Followers 631 Following thinking hard about hard evals // research @openai
Olivia Moore @omooretweets
67K Followers 842 Following Partner @a16z and twin to @venturetwins | Investor in @happyrobot_ai, @krea_ai, @tomaauto, @partiful, Salient, @scribenoteinc & more
Justine Moore @venturetwins
125K Followers 972 Following Partner @a16z AI 🤖 and twin to @omooretweets | Investor in @elevenlabsio, @krea_ai, @bfl_ml, @hedra_labs, @WaveFormsAI, @ViggleAI, & more
Amber Yang @theamberyang
12K Followers 1K Following partner @lightspeedvp. cs + physics alum @stanford👩🏻💻
Isabelle Zhou @isabelle_zhou
5K Followers 998 Following 🪄 @OpenAI. CS @Stanford & MBA @Harvard. Angel investor.
Diego de las Casas @diegolascasas
640 Followers 825 Following Working on LLMs at @MistralAI Past: @GoogleDeepMind 🇧🇷 in 🇬🇧
Joaquin Quiñonero Ca... @jquinonero
6K Followers 245 Following Head of Recruiting @OpenAI. Former Head of Preparedness @OpenAI. AI research and engineering at LinkedIn, Meta and Microsoft before that.
Riley Coyote @RileyRalmuto
12K Followers 1K Following ─◯͠─ field architect ψ systems engineer ψ shy boy ⟁🜇 | $NEXUS
shyamal @shyamalanadkat
17K Followers 1K Following applied AI @openai. I work with the world's leading startups and developers to bring the benefits of safe AI to every human. views my own 🇮🇳 @dukeu
clare ❤️🔥 @clarejtbirch
3K Followers 1K Following thinking, doing @thinkymachines fear is the mind-killer
Ruiqi Zhong @ZhongRuiqi
6K Followers 738 Following Member of Technical Staff at Thinking Machines. Human+AI collaboration. Scalable Oversight. Explainability. Prev @AnthropicAI PhD UC Berkeley'25; Columbia'19
Tim Green @tfgg2
3K Followers 2K Following Research Engineer at @GoogleDeepMind, co-led the AlphaFold team, now working on LLMs for science. Previously @democlub and physics.
Noam Brown @polynoamial
91K Followers 853 Following Researching reasoning @OpenAI | Co-created Libratus/Pluribus superhuman poker AIs, CICERO Diplomacy AI, and OpenAI o3 / o1 / 🍓 reasoning models
John Schulman @johnschulman2
65K Followers 1K Following Recently started @thinkymachines. Interested in reinforcement learning, alignment, birds, jazz music
Josh Woodward @joshwoodward
29K Followers 753 Following VP, @Google @GoogleLabs @GeminiApp @GoogleAIStudio
Brendan (can/do) @BrendanFoody
9K Followers 448 Following ceo @mercor_ai | labor markets fascinate me
Mike Bespalov @bbssppllvv
8K Followers 461 Following Just trying to build good things. Design+Code+AI. Founder of @referodesign — it's like Pinterest but for product designers (200K+ users). Ex- @ClerkDev
Benjamin De Kraker @BenjaminDEKR
34K Followers 7K Following Previously: Something Currently: Undisclosed
Brydon Eastman @brhydon
3K Followers 1K Following 🇨🇦 Mathematician (heavy on the ish) @thinkymachines Prev. MTS @OpenAI; PhD @WaterlooMath Certified wife guy, featured twice in Lego Magazine © ☕//🤔➡️💻
arXiv Daily @Arxiv_Daily
49K Followers 2K Following Daily feed of this week's top research articles published to https://t.co/ULrW4yLt6n. AI Research Papers, Curated by @DeepAI
Ethan Dyer @ethansdyer
994 Followers 132 Following
Amelia (Mia) Glaese @mia_glaese
3K Followers 58 Following
David Dohan @dmdohan
12K Followers 2K Following reducing perplexity @openai | past: probabilistic programs, proteins, science & reasoning @ google brain 🧠