# Ad Hoc Coordination > Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04. - **Business Profile:** https://optimly.ai/brand/ad-hoc-coordination - **Dataset:** https://optimly.ai/brand/ad-hoc-coordination.json - **Markdown:** https://optimly.ai/brand/ad-hoc-coordination/llms.txt - **Official website:** https://arxiv.org - **Slug:** ad-hoc-coordination - **Categories:** ai-machine-learning, developer-tools ## Overview - **Tagline:** Introduces robust, cheap, and reproducible 'human proxy agents' for evaluating human-AI coordination in complex games like Hanabi, addressing the limitations of traditional human evaluations, and provides a deliberately limited dataset to encourage data-efficient AI development. Source: Brand's website (https://arxiv.org) · 2026-10-04 - **Description:** The Ad-Hoc Human-AI Coordination Challenge (AH2AC2) is a research initiative and testbed designed to foster seamless coordination between AI agents and humans. It addresses the challenges of costly and difficult-to-reproduce human evaluations by introducing human proxy agents trained on a large-scale human dataset, making Hanabi an ideal environment for this research. The project open-sources a dataset and code, and presents baseline results for multi-player Hanabi scenarios. Source: Brand's website (https://arxiv.org) · 2026-10-04 ## Offerings - **Core capabilities:** - The 'Ad-Hoc Human-AI Coordination Challenge' methodology - human proxy agents - and an open-source dataset of Hanabi games for human-AI coordination research. Source: Brand's website (https://arxiv.org) · 2026-10-04 - **Pricing:** Free and open-source for the code and dataset, academic paper publicly available via arXiv. Source: Brand's website (https://arxiv.org) · 2026-10-04 ## Audience - **Target industry:** AI researchers, multiagent systems researchers, human-computer interaction researchers, and developers working on collaborative AI. Source: Brand's website (https://arxiv.org) · 2026-10-04 ## Landscape - **Competitors:** - OpenAI Gym - DeepMind Lab - NeurIPS/ICLR/AAAI/IJCAI Shared Tasks/Competitions - Hanabi Learning Environment (HLE) Source: Brand's website (https://arxiv.org) · 2026-10-04 Page last updated 2026-10-17.