alpasim

Why we included this project

Teams developing end-to-end driving policies need a closed-loop testbed where they can run their models against realistic sensors, vehicle dynamics, and traffic before any real-world deployment, and AlpaSim is built for that. It renders high-fidelity camera feeds with configurable field-of-view and resolution, and the renderer is pluggable, so you can swap in NVIDIA's NuRec or a video-model backend like OmniDreams. The whole simulator is Python-based with a modular gRPC interface, which makes swapping in a custom policy or component a straightforward edit rather than a rewrite. That level of hackability suits day-to-day experimentation, and the microservices design lets you scale across multiple nodes for longer or heavier validation runs. It also ships with working integrations for driving policies like Alpamayo and Transfuser, giving you a concrete baseline to benchmark against instead of starting from scratch.