---
title: OOD Reasoning Challenge Leaderboard
emoji: 🚗
colorFrom: green
colorTo: blue
sdk: gradio
sdk_version: 6.18.0
python_version: '3.12'
app_file: app.py
pinned: true
license: mit
short_description: Physical AI AV OOD Reasoning Challenge leaderboard
---

Public submission + leaderboard for the **Physical AI AV OOD Reasoning
Challenge**. Calls the private ZeroGPU evaluator
(`nvidia/PhysicalAI-OOD-Evaluator-Private`) via `gradio_client`.

## Setup

- **Secret** `HF_TOKEN`: a token that can **call the private backend space** and
  **read** the results dataset (`nvidia/PhysicalAI-OOD-Results`).
- Optional env overrides: `BACKEND_SPACE`, `RESULTS_REPO`.

Linked from the challenge info page:
https://huggingface.co/spaces/nvidia/PhysicalAI-AV-OOD-Reasoning-Challenge-2026