World Models with DreamerV3 - AI Build & Learn

​Welcome to AI Build & Learn, a weekly AI engineering stream where we pick a new topic and learn by building together.

​This event kicks off a run on world models: models that learn an internal representation of how an environment works, then use it to predict what happens next and to plan. It's a natural next step after the generation and RL events, tying both threads together.

​We're starting with DreamerV3, a model-based RL agent and a great on-ramp to the idea. Dreamer learns a compact world model of its environment from experience, then trains its policy almost entirely inside imagined rollouts of that model rather than the real environment. It's lightweight (trains on a single GPU), works across many tasks with the same settings, and connects directly to the RL and MuJoCo work.

​Some things to look up to get started:

​Model:

​- DreamerV3 (Danijar Hafner): /danijar/dreamerv3

​- Paper: "Mastering Diverse Domains through World Models" https://arxiv.org/abs/2301.04104

​Background:

​- The original "World Models" paper (Ha and Schmidhuber): https://worldmodels.github.io/

​Reources

• ​GitHub: /sagecodes/ai-build-and-learn

• ​Events Calendar: https://luma.com/ai-builders-and-learners

• ​Slack (Discuss during the week): Flyte Slack Group

• ​Hosted by Sage Elliott: /sageelliott

​In this stream

• ​Intro to topic

• ​Community Discussion

• ​Practical examples

​Community challenge (optional)

​Try spending 30–90 minutes during the week learning or building something related to the topic, then share what you’re working on in Slack.

​Note on Flyte / Union

​You may see Flyte used in some demos. Flyte is an open-source AI orchestration platform maintained by Union (where I work) for building scalable, durable, and observable AI workflows. You do not need to use Flyte to participate.

• ​Union: https://www.union.ai/

• ​Flyte: https://flyte.org/

​Drop a comment with ideas for future topics (agents, RAG, MLOps, robotics, frameworks, and more).