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Joel Z Leibo
590 posts
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Joel Z Leibo
@jzl86
Research scientist at Google DeepMind.
London
jzleibo.com
Joined April 2009
559
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2,591
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  • Pinned
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    Joel Z Leibo
    @jzl86
    Jul 12, 2025
    Reposting our paper from a few months ago as recent events again underscore its relevance: "a theory of appropriateness with applications to generative AI"
    arXiv logo
    arxiv.org
    A theory of appropriateness with applications to generative...
    What is appropriateness? Humans navigate a multi-scale mosaic of interlocking notions of what is appropriate for different situations. We act one way with our friends, another with our family, and...
    4K
  • user avatar
    Joel Z Leibo
    @jzl86
    Sep 23, 2024
    We are currently hiring for an open research scientist position working on my team in multi-agent artificial general intelligence: boards.greenhouse.io/deepmind/jobs/…
    94K
  • user avatar
    Joel Z Leibo
    @jzl86
    Jan 19, 2022
    In our latest paper we studied how even silly rules can benefit a society. They provide additional opportunities for all to practice the generic skills of enforcement and compliance upon which all social norms depend.
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    Google DeepMind
    @GoogleDeepMind
    Jan 19, 2022
    How can deep reinforcement-learning contribute to our understanding of complex social interactions like social norms and the evolution of culture? Learn more: dpmd.ai/spurious-norma… 1/
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    Joel Z Leibo
    @jzl86
    Sep 16, 2024
    Lots of updates recently in the Concordia github repo (github.com/google-deepmin…), getting ready for the NeurIPS contest to begin this week!
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    GitHub - google-deepmind/concordia: A library for generative social simulation
    From github.com
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    Joel Z Leibo
    @jzl86
    Dec 7, 2023
    Very happy to launch Concordia, a library for generative agent-based modeling where you build simulations like tabletop roleplaying games! The game master (storyteller) is an agent who controls the environment where player agents interact, tracks state and can call external tools
    user avatar
    Edgar Duenez-Guzman
    @DuenezGuzman
    Dec 7, 2023
    Extremely excited to share our work on Generative Agent-Based Modeling. We are open sourcing Concordia, a platform for creating social simulations with language models. Code: github.com/google-deepmin… Paper: arxiv.org/abs/2312.03664
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    Joel Z Leibo
    @jzl86
    Jul 16, 2021
    Very excited to announce Melting Pot: a large suite for testing how well agent populations trained by multi-agent RL can generalize to new social situations. github: github.com/deepmind/melti… blog: deepmind.com/research/publi… paper: arxiv.org/abs/2107.06857 #ICML2021
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    Google DeepMind
    @GoogleDeepMind
    Jul 16, 2021
    Social interactions are key to intelligence, but do artificial agents understand this? Introducing Melting Pot, an evaluation suite for reinforcement learning agents that tests their socio-cognitive skills: bit.ly/dm-meltingpot OS: bit.ly/meltingpot-os #ICML2021
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    GitHub - google-deepmind/meltingpot: A suite of test scenarios for multi-agent reinforcement...
    From github.com
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    Joel Z Leibo
    @jzl86
    Sep 12, 2023
    Very happy to announce that the Melting Pot challenge, a NeurIPS 2023 contest, is now open for submissions! Test how well your agents cooperate with familiar and unfamiliar co-players in complex social scenarios!
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    8.5K
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    Joel Z Leibo
    @jzl86
    Mar 8, 2022
    Yannic Kilcher's review of our Silly Rules paper is here! We joined him for a discussion in the second half of the video too.
    user avatar
    Yannic Kilcher 🇸🇨
    @ykilcher
    Mar 8, 2022
    "Don't eat fish on a Friday" seems like a silly rule, yet we are surrounded by many social norms that have no direct impact on welfare. Why? This paper uses multi-agent RL and shows how such "silly rules" can benefit society. Review video & interview here: youtu.be/6dvcYx9hcbE
    don't eat fish on a Friday, and other silly rules
with the authors
  • user avatar
    Joel Z Leibo
    @jzl86
    Jun 1, 2023
    We are very happy to announce the Melting Pot contest! Is your RL agent good at cooperating in groups with unknown numbers of familiar and unfamiliar individuals? Enter the contest to find out!
    user avatar
    Cooperative AI Foundation
    @coop_ai
    Jun 1, 2023
    Excited to announce the Melting Pot Contest has been accepted for NeurIPS Competition Track! Sign up below for early access iryc1zmdzmb.typeform.com/to/GrsAjGAW
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    Joel Z Leibo
    @jzl86
    Feb 9, 2017
    Our latest paper, on learning in sequential social dilemmas:
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    Google DeepMind
    @GoogleDeepMind
    Feb 9, 2017
    Understanding agent cooperation: Read our latest blog goo.gl/NG97hY and paper goo.gl/zRStx1
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    Joel Z Leibo
    @jzl86
    Feb 25, 2024
    A very cool paper on social norm learning here! Among lots of interesting things about this paper and model, the authors also made a new Melting Pot environment by bringing together elements from Clean Up, Commons Harvest, and Territory in a single environment. Great idea!
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    ninell oldenburg
    @nellsn1
    Feb 22, 2024
    How can we ensure cooperation between (natural & artificial) agents? Humans do this via social norms that constrain uncooperative actions. In this new paper, @xuanalogue and I show how artificial agents can *learn* these norms from observation! Link: arxiv.org/abs/2402.13399
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    Joel Z Leibo
    @jzl86
    Sep 1, 2024
    The Concordia Contest is opening very soon now! The task is to design an agent decision-making process that operates in unconstrained natural language environments structured like table-top role-playing games! Agents have to cooperate in groups containing strangers (zero-shot).
    user avatar
    Cooperative AI Foundation
    @coop_ai
    Aug 31, 2024
    We're excited to be partnering again with @apartresearch for a hackathon next weekend in the run-up to the Concordia Contest at @NeurIPSConf! The challenge: advancing the cooperative intelligence of language model agents. Sign up here: apartresearch.com/event/the-conc….
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    Joel Z Leibo
    @jzl86
    Sep 18, 2024
    The Concordia NeurIPS Contest is now live!! Find out if your agent architecture can discover cooperative resolutions to novel multi-player social dilemma situations in open-ended text-based worlds! Submit your solution here: codabench.org/competitions/3…
    user avatar
    Cooperative AI Foundation
    @coop_ai
    Sep 18, 2024
    Replying to @coop_ai
    The contest challenges participants to advance the cooperative intelligence of LLM agents in rich, text-based environments, based on the Concordia framework, which uses language models to create open-ended worlds similar to tabletop role-playing games: github.com/google-deepmin….
    5.9K
  • user avatar
    Joel Z Leibo
    @jzl86
    Nov 13, 2024
    Since several articles arguing that scaling is slowing down are appearing, OpenAI, Google and Anthropic Are Struggling to Build More Advanced AI bloomberg.com/news/articles/… it's a good time to post our paper on this again: A social path to human-like ai arxiv.org/abs/2405.15815
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    OpenAI, Google and Anthropic Are Struggling to Build More Advanced AI
    From bloomberg.com
    4K

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