MineDojo: Building Open-Ended Embodied Agents with Internet-Scale Knowledge

TL;DR

MineDojo introduces a comprehensive framework for building generalist embodied agents in Minecraft, integrating diverse tasks, large-scale multimodal knowledge, and a novel learning algorithm leveraging pre-trained models to achieve open-ended task solving.

Contribution

The paper presents MineDojo, a scalable environment and knowledge base, along with a new learning algorithm that enables agents to solve diverse open-ended tasks without manual rewards.

Findings

Agents can solve various open-ended tasks in Minecraft.

Pre-trained video-language models effectively serve as reward functions.

Open-source resources facilitate further research in embodied AI.

Abstract

Autonomous agents have made great strides in specialist domains like Atari games and Go. However, they typically learn tabula rasa in isolated environments with limited and manually conceived objectives, thus failing to generalize across a wide spectrum of tasks and capabilities. Inspired by how humans continually learn and adapt in the open world, we advocate a trinity of ingredients for building generalist agents: 1) an environment that supports a multitude of tasks and goals, 2) a large-scale database of multimodal knowledge, and 3) a flexible and scalable agent architecture. We introduce MineDojo, a new framework built on the popular Minecraft game that features a simulation suite with thousands of diverse open-ended tasks and an internet-scale knowledge base with Minecraft videos, tutorials, wiki pages, and forum discussions. Using MineDojo's data, we propose a novel agent learning algorithm that leverages large pre-trained video-language models as a learned reward function. Our agent is able to solve a variety of open-ended tasks specified in free-form language without any manually designed dense shaping reward. We open-source the simulation suite, knowledge bases, algorithm implementation, and pretrained models (https://minedojo.org) to promote research towards the goal of generally capable embodied agents.