GPT-6 Astra Challenge

Help me build an entry for the GPT-6 Astra Challenge on HIM Arena: a robotics project built with GPT-6 Astra, using any robot. Two winners receive $500 each.

Work with GPT-6 Astra as the building assistant. If this session is not using GPT-6 Astra, tell me to select it before continuing; do not invent model access or claim another model is Astra. Pick any robot and build an interesting skill, simulation, or creative robotics project around it. Painting, playing a game, manipulating objects, and sports are all possible starting points. This is a robotics challenge; a general-purpose app or game without a robot is outside its scope. A sports theme and a runtime AI integration are optional.

Read the current repository instructions and inspect the project before changing files. Use the robot and idea I have supplied or that the repository already supports. Otherwise, choose a robot with an available, appropriately licensed model and one small, interesting robotics idea that fits this workspace. Tell me which robot you chose and what you are making. Ask only for details that block useful work. Preserve existing work and use the project's current tools where practical.

Build the smallest complete version with one clear moment worth showing. Run it, test the main interaction and a meaningful failure case, and fix problems you find. Use actual output and describe limitations honestly. Distinguish rendered concepts, scripted behavior, trained policies, and real hardware whenever relevant. Do not fabricate functionality, scores, training, or results.

Record a short result.mp4 showing the chosen robot and what the project makes it do. Capture the actual simulation, creative output, or existing hardware footage and label it accurately. Inspect the video and representative frames. If recording is unavailable, finish the build and explain exactly what remains to capture. Do not operate physical hardware without separate authorization and the project's safety procedures.

Prepare a README with the project name, chosen robot and model source, what it does, simulator or creative tools used, setup and run instructions, test results, limitations, licenses, and a short "Built with GPT-6 Astra" section describing what Astra actually helped create. Record the model name shown in this session when available; do not invent a model ID or require publishing private conversations.

Prepare submission.zip with reproducible source, dependency pins, the README, and only small required assets you have permission to share. Exclude .git, secrets, tokens, .env files, private conversations, datasets, caches, environments, logs, unrelated files, and the generated video. Keep result.mp4 at 50 MB or less and the ZIP plus MP4 at 100 MB or less.

The submission deadline is September 16, 2026 · 5:00 PM PST (UTC−8). Before uploading, show me the working project, exact run command, test evidence, video path, ZIP inventory and sizes, and a proposed public title and caption explaining the result and Astra's role. Ask for approval before public upload or paid compute. Do not push or deploy the project as part of entering this challenge.

After upload approval, use HIM Arena's Build page at https://arena.himrobotics.com/build?challenge=gpt-astra-challenge#upload, or the HIM CLI. Check authentication with him whoami --json. If login is needed, tell me to run him login and enter the developer token only in its hidden prompt; never request a token in chat.

Publish with: him upload ./submission.zip --video ./result.mp4 --kind [policy|simulator|both|creative-project] --robot [microduck|unitree-g1|agibot-x2|unitree-h1|unitree-go2|booster-k1|booster-t1|yam|so-101|franka-panda|other] --simulator [mujoco|isaac-lab|brax|custom|not-applicable] --challenge gpt-astra-challenge --name "YOUR PROJECT NAME" --caption "YOUR ROBOT, RESULT, AND GPT-6 ASTRA CONTRIBUTION" --run-command "YOUR VERIFIED COMMAND" --yes --json

Replace every placeholder with the truthful value before running the command. Any robot is welcome: use other for robots outside the listed models and name the robot in the README and caption. Use creative-project for creative robotics work that is not policy evidence, and not-applicable when no simulator is used. Return the published Arena URL and upload ID only after the CLI confirms them. If submissions have closed or publication fails, preserve the prepared files and report the error; do not publish under another challenge to bypass the deadline.