Martin Signoux @MartinSignoux
Red-teaming innovation, fine-tuning regulation ——— AI policy @OpenAI perstechtives.substack.com Paris Joined June 2016-
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We must act now. AI capabilities are advancing far faster than our understanding of the economic implications. We must act now to guide AI to complement humans rather than simply imitate them — and to generate prosperity for the many, not just the few. I'm delighted that 16 Nobel Laureates, over 200 top economists, and top AI researchers agree and signed our statement on transformative AI. 1/n
GPT-5.6 Sol sets a new SOTA on ARC-AGI-3: 7.8% Sol is the first verified frontier model to ever beat an ARC-AGI-3 game It is the best model at orienting in a situation it's never encountered
Most AI agent evaluations boil capability down to one score. But that number hides a key choice: how much compute the agent was allowed to use. New work from our Science of Evaluation team shows why that matters. 🧵
We can finally say AI isn't killing jobs. A new paper from me, @tryramp, and @RevelioLabs uses firm-level spend and workforce data across 21K U.S. businesses to measure AI's impact on jobs. Firms that adopt AI heavily grow headcount 10% over two years following adoption. Low adopters see no statistically significant change.
« if global safety standards are not established, AI restrictions, possibly via actions taken by individual countries, will be the only way forward. There are precedents we can draw on here. Aviation safety, global financial standards and efforts to manage atomic energy (IAEA)»
« Democratic institutions must not cede their responsibilities to AI labs. The labs develop the technology, but citizens and their elected representatives must make the rules. »
EU countries need to develop their own plans to address the impact of AI on the labor market, OpenAI's chief economist has said. politico.eu/article/no-one…
@gchampeau Merci Guillaume. Il y a toute une section sur la méthodologie employée.
@gchampeau @Alex_M_Richmond Fixed !
💼 To what extent will AI reshape Europe’s labour market? 🇪🇺 Today, @OpenAI is releasing the AI Jobs Transition Framework for the EU, a new country- and EU-level map of where AI-related pressure and opportunity may emerge. A thread 🧵1/7
👏And a massive kudos to @Alex_M_Richmond for driving this important work with the Econ team ! Find the report here: openai.com/index/mapping-…
💡The report also sets out preliminary ideas to strengthen Europe’s preparedness. Over the coming months, we will build on them through engagement with stakeholders at both national and EU levels. Ideas, evidence and feedback are very welcome. 🤝 7/7
To anyone complaining that AI is becoming too expensive: show them this graph. Today, frontier intelligence capable of advanced scientific work (and much more) is available at roughly the price of GPT-4 three years ago. And, imagine where we will be three years from now.
@Dorialexander @nathanbenaich What about le Chaton fat on a gigafactory ?
Raphael Grably @GrablyR
47K Followers 7K Following Grand reporter @bfmtv / Spécialiste des sujets numériques
Luca Bertuzzi @BertuzLuca
15K Followers 4K Following Chief Political Correspondent @euronews, reporting at large on European affairs & global politics. Once known as the AI guy. Ex @mlexclusive & @euractiv.
marc rees @reesmarc
40K Followers 10K Following Journaliste @linforme_ spécialisé droit & tech, ex RC NextINpact | Insta : https://t.co/T0C6kDhPVK | BS : https://t.co/ujEpSysAI2
Nicolas Petit @CompetitionProf
10K Followers 458 Following Thoughtful antitrust, not make-believe antitrust. Prof @EUI_EU & co-founder DCI @fordynamism. Opinions mine only. Multi-homer @competitionprof.bsky.social
Thibault Schrepel @ProfSchrepel
11K Followers 809 Following Associate Prof @VU_Law • Faculty Affiliate @CodeXStanford • Founder Stanford #ComputationalAntitrust project | @NetworkLawRev | Scaling Theory podcast • 🎾 🏃
Yann LeCun @ylecun
1.2M Followers 787 Following Professor at NYU & Executive Chairman at AMI Labs. Ex-Chief AI Scientist at Meta. Researcher in AI, Machine Learning, Robotics, etc. ACM Turing Award Laureate.
Guillaume Champeau @gchampeau
70K Followers 6K Following Juriste et geek bidouilleur. Droit, IA, vibe coding & souveraineté numérique. Fondateur et ancien rédacteur en chef de @numerama. Créateur de https://t.co/MBVSETj7Qk.
Elsa Trujillo @Elsa_Trujillo_
18K Followers 4K Following Journaliste @LEXPRESS - Rubrique Secret-défense - ✉️ [email protected]
Clément Beaune @CBeaune
144K Followers 8K Following 🇫🇷🇪🇺 Haut-commissaire à la Stratégie et au Plan, ancien député de Paris et ministre de l’Europe puis des Transports
APCO @apcoworldwide
11K Followers 3K Following APCO is a global advisory and advocacy firm helping organizations build the un/common ground upon which progress is made.
Hugo Weber @hugo_weber
2K Followers 3K Following Je porte une cravate et je bosse dans la tech. Mélange ambivalent d’économie, de social, de Tech ascendant shipost.
Pierre-Yves Beaudouin @Pyb75
5K Followers 2K Following Wikimédien en résidence @UrfistNice @Univ_CotedAzur Ancien président @Wikimedia_Fr #OpenData • #OpenGLAM • #ScienceOuverte • #1jour1taxe • Taphophile
Rob Sherman @rmsherman
2K Followers 1K Following VP Policy @Meta | Board @PartnershipAI Shaping governance, innovation, and the critical infrastructure for the AI era. Washingtonian. Dad. Explorer.
Benoit Loutrel @beloutrel
652 Followers 329 Following Numérique et action publique, une passion- Economie industrielle, ma lunette pour comprendre - Compte personnel
Prof Pınar Akman @drpinarakman
4K Followers 2K Following Dormant account - follow me at: https://t.co/7OWvERXLsT - Competition Law Professor, University of Leeds - Judge, Competition Appeal Tribunal
Theresa Fallon @TheresaAFallon
57K Followers 40K Following Director,Centre for Russia Europe Asia Studies(CREAS)NR Snr Fellow @ChicagoCouncil.Geopol,Energy. B4:Beijing,Moscow,London,Paris,Kyoto @ForeignPolicy 20 2follow
Romain ROUYER @Rouffi
2K Followers 5K Following PhD student PErSEUS @Univ_Lorraine works on #HCI #XR #CareDesign 💔 #DarkPattern • Founded @SCogLab part of @NeuroTechX • Alumni @aire_master @IDMC_nancy
Yuvraj Singh Ashiya @ashiya_yuvraj
0 Followers 4K Following Re-tweets are not endorsements.and the best teacher is your last mistake.
Tim Schnabel @TimSchnabel
384 Followers 618 Following President, @LawReformInst; previously executive director @uniformlaws, attorney @StateDept
Bogdan BODNAR @bogdandebodnar
2K Followers 2K Following Journaliste spécialisé dans les technologies pour @LaTribune 🖥️ Ukrainien / mail pro : bbodnar/at/latribune-.-fr
eric @ericlim
3K Followers 650 Following agi deployment @openai • teaching cs @chapmanu, @kmu_tweet • 🇰🇷
DayOne @DayOne7475
3 Followers 1K Following
Rasmus Fonnesbæk @fonnesbaek
1K Followers 5K Following Inclusive growth & AI for the world. Fan of democracy & skill-based migration. Ph.D. in PoliSci. Views always my own; formerly @DalbergTweet, @InstituteGC.
Keegan McBride @KeeganMcB
2K Followers 2K Following Views are my own. RTs ≠ Endorsements. Director for Science and Tech @ Tony Blair Institute
Nick Caputo @nickacaputo
358 Followers 798 Following AI, governance, law, etc. Assistant Professor @jhubloombergctr School of Government and Policy (SGP); Law & AI @aigioxford
Julian Marel @JulianMrlEmbaFR
5 Followers 161 Following
stelmeitovich @stelmeitovich
54 Followers 5K Following
Supersocks @iamsupersocks
5K Followers 1K Following Energy engineer exploring AI agents, open models, and infrastructure.
AGT @Garzita860841
8 Followers 502 Following
Olaf Willner @OlafWillner
49 Followers 132 Following Pre-doc @econ_uzh, @cornell '24. Incoming @AnthropicAI
Jean-Marc Aubry @JeanMarcAubry
897 Followers 1K Following tweet in fr/ger/en about #marketing #communication #pr #media #programmatic
Miguel Guerrero @apolmig
1K Followers 1K Following Prompting Machines || AI (capable + safe), GovTech | Founder @AISaturdays_ES et al. ⚔ | @Acumen fellow
Adrián Melic @adrianmelic
427 Followers 141 Following AI engineer building with Codex, OpenAI API and AWS. LLMs since GPT-2. Teaching AI. Codex Ambassador.
Alex Martin Richmond @Alex_M_Richmond
723 Followers 1K Following Econ research @ OpenAI. Prev MIT, Burning Glass Institute, Federal Reserve Board, University of Mississippi
Laurent Poucan @lpoucan
3K Followers 2K Following #ComPublique #markterr @angers @angersconnected #FoodAngers #Angers #Battleflowers Tweete avec toâ & RT un #tipeu sur tout, surtout si c'est beau ou rigolo…
Vl01010101 @vl01010101
207 Followers 4K Following
Nicolas Clairembault @nclairembault
2K Followers 2K Following Spécialiste CRM Hubspot | Marketing (emailing, contenu, inbound) - Ventes (pipelines, offres) - Support (base de connaissances, chatbots) - Automatisations IA
Bill Chen @realchillben
4K Followers 1K Following @openai ; Prev @ycombinator founder, ML @Meta, ML @Columbia views are my own 🇨🇦 🇺🇸
tomokazu @onoe0404
52 Followers 376 Following ペンギン好き一家の父。娘は、日本では見られないロイヤルペンギンをいつか直接みるのが夢。妻は、世界最小フェアリーペンギンが癒し。父は、跳ねる眉毛のイワトビペンギン推し。あなたの推しペンは?
Markus Anderljung @Manderljung
4K Followers 1K Following Trying to design good AI policy. Director of Policy & Research @GovAIOrg. Adjunct Fellow @CNASdc. Prev. Vice-Chair, EU Code of Practice on GPAI.
Jorge Morillo @JorgeMo18016929
0 Followers 5 Following
Rémi @remlhoste
8 Followers 176 Following
Lisa Soder @lisa_soder_
489 Followers 688 Following Lisa is my name, AI governance my game | EU AI Office & @aigioxford
chrisreedbates @chrisreedbates
264 Followers 503 Following Operator and Builder - currently working on SMB tools and a business run by an actual team of Agents. https://t.co/29zTZRThQO
Seán Ó hÉigeartaig... @S_OhEigeartaigh
7K Followers 2K Following Director of https://t.co/gCEDoKdKBT at Uni of Cambridge | Researching Big Risks, and impacts of AI & emerging tech. Opinions own
Yafah Edelman @YafahEdelman
1K Followers 547 Following Chief Strategy Officer @EpochAIResearch she/her
Andy Hall @ahall_research
12K Followers 3K Following Building free systems. Prof @StanfordGSB, Senior Fellow @HooverInst. Advisor, @a16zcrypto, @ByForumAI. Writing at https://t.co/K0BfKKi4sM
Raphaël Doan @raphaeldoan
7K Followers 824 Following Author of Quand Rome inventait le populisme and other essays. I write about ancient history, tech, AI, and politics. Founder of @vestigialab.
Bruno Raillard @brunoraillard
2K Followers 5K Following Co-Founder & Managing Partner @frst_vc - [email protected]
Samuel Fitoussi @SamuelFitouss10
31K Followers 2K Following Chroniqueur @Le_Figaro, écrivain, auteur de "Pourquoi les intellectuels se trompent" (2025). I invest in AI startups @frst_vc
Ronnie Chatterji @RonnieChatterji
7K Followers 648 Following Chief Economist @OpenAI & Distinguished Professor @DukeFuqua. Views my own.
Paul Roulleau @paulroulleau
17 Followers 145 Following Builder. Pas consultant. Pas banquier. Je rachète des PME en difficulté avec des agents IA
DT85 @Dr85Pro
0 Followers 1K Following
Raphael Grably @GrablyR
47K Followers 7K Following Grand reporter @bfmtv / Spécialiste des sujets numériques
Kai Zenner @ZennerBXL
4K Followers 627 Following Head of Office for @AxelVossMdEP || AI, Data, Liability, and Better Regulation || @EPPGroup at European Parliament || Views are my own & RT≠endorsement
Luca Bertuzzi @BertuzLuca
15K Followers 4K Following Chief Political Correspondent @euronews, reporting at large on European affairs & global politics. Once known as the AI guy. Ex @mlexclusive & @euractiv.
marc rees @reesmarc
40K Followers 10K Following Journaliste @linforme_ spécialisé droit & tech, ex RC NextINpact | Insta : https://t.co/T0C6kDhPVK | BS : https://t.co/ujEpSysAI2
Nicolas Petit @CompetitionProf
10K Followers 458 Following Thoughtful antitrust, not make-believe antitrust. Prof @EUI_EU & co-founder DCI @fordynamism. Opinions mine only. Multi-homer @competitionprof.bsky.social
Sébastien Soriano @sorianotech
10K Followers 572 Following daron 🦕 directeur @IGNFrance 🌍 🇫🇷 auteur de « Un avenir pour le service public » ✊🏽
Asma MHALLA @AsmaMhalla
26K Followers 339 Following Political Theorist • Tech Power • Geopolitics • Democracy | #NYU Research Fellow | Author of 2 best selling essays #Technopolitique #Cyberpunk (Seuil, 2025)
Lewis Crofts @lewis_crofts
7K Followers 1K Following The Unbearable Triteness of Tweeting. [email protected] Editor-at-Large, MLex. Words, words, words. And some pictures.
Thibault Schrepel @ProfSchrepel
11K Followers 809 Following Associate Prof @VU_Law • Faculty Affiliate @CodeXStanford • Founder Stanford #ComputationalAntitrust project | @NetworkLawRev | Scaling Theory podcast • 🎾 🏃
Yann LeCun @ylecun
1.2M Followers 787 Following Professor at NYU & Executive Chairman at AMI Labs. Ex-Chief AI Scientist at Meta. Researcher in AI, Machine Learning, Robotics, etc. ACM Turing Award Laureate.
Guillaume Champeau @gchampeau
70K Followers 6K Following Juriste et geek bidouilleur. Droit, IA, vibe coding & souveraineté numérique. Fondateur et ancien rédacteur en chef de @numerama. Créateur de https://t.co/MBVSETj7Qk.
Clément Beaune @CBeaune
144K Followers 8K Following 🇫🇷🇪🇺 Haut-commissaire à la Stratégie et au Plan, ancien député de Paris et ministre de l’Europe puis des Transports
Mark Scott @markscott82
17K Followers 1K Following Senior Resident Fellow, Atlantic Council's Democracy + Tech Initiative. Weekly newsletter: https://t.co/TFPFB2HqNY
Tommaso Valletti @TomValletti
14K Followers 927 Following Econ professor @imperialcollege. Londoner, made in 🇮🇹. Flute über alles 🎵
Frédéric Marty @fred_marty
2K Followers 1K Following Chercheur en économie au CNRS : Droit et économie de la concurrence / CNRS Research Fellow - Competition Law and Economics
Hugo Weber @hugo_weber
2K Followers 3K Following Je porte une cravate et je bosse dans la tech. Mélange ambivalent d’économie, de social, de Tech ascendant shipost.
Pierre-Yves Beaudouin @Pyb75
5K Followers 2K Following Wikimédien en résidence @UrfistNice @Univ_CotedAzur Ancien président @Wikimedia_Fr #OpenData • #OpenGLAM • #ScienceOuverte • #1jour1taxe • Taphophile
Marco Pancini @marconav
2K Followers 1K Following Public policy @Meta. Public announcement: all views expressed here are my own, not my employer's. Attenzione: questa è tutta farina del mio sacco.
Harvey Lederman @LedermanHarvey
10K Followers 895 Following Alignment Training @AnthropicAI. Philosophy @nyuniversity, @UTAustin.
Peter Gostev @petergostev
19K Followers 927 Following London 🇬🇧 AI Capability @ https://t.co/Y4VEGWoNFG https://t.co/bkfw1nxLch
Sebastian Mallaby @scmallaby
17K Followers 569 Following Snr Fellow @CFR_org. Book: THE INFINITY MACHINE: Demis Hassabis, DeepMind, and the Quest for Superintelligence. Podcast: The Spillover. RTntEndst. Opin mine.
Patricia Paskov @prpaskov
818 Followers 3K Following Frontier AI auditing, evals & policy | @averiorg @randcorporation @uniofoxford
Deyao Zhu @tikgiau
2K Followers 548 Following Reseach Scientist at ByteDance Seed Edge @ByteDanceTalk. PhD @KAUST_news Prev. @MPI_IS. RL, Multimodel LLM, Learning from Experience, Self Evolving.
Bogdan BODNAR @bogdandebodnar
2K Followers 2K Following Journaliste spécialisé dans les technologies pour @LaTribune 🖥️ Ukrainien / mail pro : bbodnar/at/latribune-.-fr
eric @ericlim
3K Followers 650 Following agi deployment @openai • teaching cs @chapmanu, @kmu_tweet • 🇰🇷
Bharat Chandar @BharatKChandar
2K Followers 451 Following Research at Stanford Digital Economy Lab and Institute for Human-Centered AI PhD in Economics from Stanford GSB Substack: https://t.co/gR3Gwu4PwR
Alex Martin Richmond @Alex_M_Richmond
723 Followers 1K Following Econ research @ OpenAI. Prev MIT, Burning Glass Institute, Federal Reserve Board, University of Mississippi
Charles Foster @CFGeek
4K Followers 582 Following On policy @METR_Evals 🧪 “excels at reasoning & tool use” 🪄 CoI disclosures on my Substack “About” page.
Micah Carroll @MicahCarroll
3K Followers 762 Following RSI Preparedness @openai. Prev @berkeley_ai /w @ancadianadragan & Stuart Russell
Chad Jones @ChadJonesEcon
17K Followers 899 Following Economics professor at Stanford GSB working on AI and economic growth.
Clint Gibler @clintgibler
26K Followers 573 Following 🛡️ Leading Cyber at @OpenAI 📚 Creator of https://t.co/xwtIAI0CuJ newsletter
Bill Chen @realchillben
4K Followers 1K Following @openai ; Prev @ycombinator founder, ML @Meta, ML @Columbia views are my own 🇨🇦 🇺🇸
Tomek Korbak @tomekkorbak
5K Followers 625 Following ai safety @openai | previously: @AISecurityInst @AnthropicAI @nyuniversity @SussexUni
Jassi Pannu @JassiPannuMD
702 Followers 568 Following Assistant Professor @JHSPH_CHS; Director of Frontier Safety at https://t.co/pXkDvMT848; Board Director @Blueprintbio
Lorenzo Pacchiardi @LPacchiardi
805 Followers 527 Following AI evaluations and EU AI policy Assistant Research Professor @LeverhulmeCFI @Cambridge_Uni. PhD in Stats and ML @UniofOxford.
Matthias Samwald @matthiassamwald
625 Followers 526 Following ✨ Preparing for transformative AI: https://t.co/TkVI8zk1MI 🔬 Assoc. Prof. AI & biomedical informatics 🌐 Recent co-chair EU GPAI Code of Practice
Adam Gleave @ARGleave
5K Followers 417 Following CEO & co-founder @FARAIResearch non-profit | PhD from @berkeley_ai | Alignment & robustness | on bsky as https://t.co/98dTfmdw2b
Weijie Su @weijie444
13K Followers 499 Following Researcher @OpenAI, Professor @Wharton, CS, Math @Penn, coDir PRiML, PhD @Stanford
Teng Yan @tengyanAI
48K Followers 7K Following Ex-doctor. I publish the AI infrastructure & supply chain intelligence you can't get anywhere else. Building @tessara_ai
Lisa Soder @lisa_soder_
489 Followers 688 Following Lisa is my name, AI governance my game | EU AI Office & @aigioxford
Nicholas Joseph @nickevanjoseph
8K Followers 54 Following Pretraining @AnthropicAI, formerly safety @OpenAI
Bianca Martin @bianca__martin
3K Followers 564 Following AI Resilience @ OpenAI Foundation, Ethics @UniofOxford. Prev: Technical Chief of Staff to the CTO and post-AGI impacts research @OpenAI
Luca Righetti @lucafrighetti
2K Followers 275 Following AI risks are hard to study — we need more transparency and rigor. Senior Researcher @GovAIOrg, @METR_Evals.
Tairan He @TairanHe99
15K Followers 1K Following Researcher @OpenAI. Prev: PhD @CMU_Robotics @NVIDIA @MSFTResearch @sjtu1896 | All Opinions are My Own
Yafah Edelman @YafahEdelman
1K Followers 547 Following Chief Strategy Officer @EpochAIResearch she/her
Pushmeet Kohli @pushmeet
26K Followers 74 Following Chief Scientist, Google Cloud. VP, DeepMind. AI for Science. (Alpha)Fold, Genome, Evolve, Earth, Proof, Co-Scientist, SynthID...
Andy Hall @ahall_research
12K Followers 3K Following Building free systems. Prof @StanfordGSB, Senior Fellow @HooverInst. Advisor, @a16zcrypto, @ByForumAI. Writing at https://t.co/K0BfKKi4sM
Raphaël Doan @raphaeldoan
7K Followers 824 Following Author of Quand Rome inventait le populisme and other essays. I write about ancient history, tech, AI, and politics. Founder of @vestigialab.
Xiaolong Wang @xiaolonw
22K Followers 1K Following Research Director, @Meta Superintelligence Labs Co-founder of ARI Associate Professor @UCSDJacobs Postdoc @berkeley_ai PhD @CMU_Robotics
Samuel Fitoussi @SamuelFitouss10
31K Followers 2K Following Chroniqueur @Le_Figaro, écrivain, auteur de "Pourquoi les intellectuels se trompent" (2025). I invest in AI startups @frst_vc
Rob Seamans @robseamans
7K Followers 3K Following Professor @NYUStern; Director @NYUSternCFM; former Obama CEA Senior Economist for tech & innovation; research on AI, robots, entrepreneurship, strategy
Joshua Gans @joshgans
20K Followers 753 Following Professor at the Rotman School of Management, University of Toronto. Chief Economist of Creative Destruction Lab https://t.co/a9ZbnBauCF
Daniel Rock @danielrock
6K Followers 2K Following Asst. Prof. in OID @Wharton @Penn. Cofounder @workhelix. Everyone can just do stuff and that's {good, bad}. I study the economics of AI.
David Autor @davidautor
36K Followers 222 Following
Benedict Kerres @benedictk__
5K Followers 2K Following @OpenAI | ex-@PalantirTech; ex-@AppliedInt | @uniheidelberg | Physicist | Autonomous systems | Personal Views Only.
Vaibhav (VB) Srivasta... @reach_vb
54K Followers 297 Following founder mode @OpenAI | ex @huggingface | F1 fan | Here for @at_sofdog’s wisdom | *opinions my own
Zoomer Alcibiades @HellenicVibes
16K Followers 2K Following You must change your life. Heidegger enjoyer.
Marius Hobbhahn @MariusHobbhahn
7K Followers 1K Following CEO at Apollo Research @apolloaievals prev. ML PhD with Philipp Hennig & AI forecasting @EpochAIResearch
Brett Adcock @adcock_brett
659K Followers 21 Following @figure_robot (AI robots) @hark_labs (personal AGI) @cover_thz (weapon detection) @flyArcher (flying cars)
gabriel @gabriel1
113K Followers 591 Following new thing, previously research at @OpenAI & @midjourney
jasmine sun @jasminewsun
22K Followers 1K Following anthropologist of disruption ✰ contributor @theatlantic ✰ newsletter https://t.co/pyrKX4WjGX
sam @Discoplomacy
8K Followers 176 Following Work on geotectonics + emerging tech + China. Ian Dunross disciple. Care deeply about Britain’s place in the world. Great Man Theory maximalist.
























