它提供了一个完整的、仅基于仿真的流水线，用于微调最先进的VLA模型（GR00T-N1.7）在结构化操作基准上的表现，包含自动评分和详细的设置说明，无需硬件即可实现可重复研究。
Fine-tune and evaluate GR00T-N1.7 on SO-101 Bench in an Isaac Lab digital twin — no robot required.
This is the GR00T-N1.7 variant of 5hadytru/so101_bench:
a simulated twin of a language-conditioned SO-101 tabletop manipulation benchmark
(bin / next-to / between / move tasks over 56 household objects), retargeted from
GR00T-N1.6 to N1.7 (Cosmos-Reason2 / Qwen3-VL backbone). See the upstream repo
for the benchmark design and the paper's real-robot findings.
Two separate Python environments are required — their transformers pins conflict:
| Environment | Used for | Key stack |
|---|---|---|
Isaac Lab (~/IsaacLab/isaaclab.sh) | Simulator + evaluator | Isaac Sim 5.1, Isaac Lab 5.1 |
N1.7 LeRobot venv (grootn1.7/lerobot/.venv) | Fine-tuning + policy serving | LeRobot groot_n1_7, transformers 5.x |
1. Install the benchmark extension into the Isaac Lab env (must point at this clone — an editable install from another clone will shadow it with stale modules):
~/IsaacLab/isaaclab.sh -p -m pip install -e source/so101_bench
2. Download the USD assets (~430 MB of room/bin/arm/object meshes; gitignored):
huggingface-cli download 5hadytru/so101_bench_assets so101_bench_usd_assets.tar.gz \
--repo-type dataset --local-dir /tmp/so101_assets
tar -xzf /tmp/so101_assets/so101_bench_usd_assets.tar.gz \
-C source/so101_bench/so101_bench/assets/
3. Set up the N1.7 LeRobot env (fine-tune + serving):
cd ../grootn1.7/lerobot && pip install -e '.[groot,training]'
Prerequisite: accept the gated
nvidia/Cosmos-Reason2-2B
backbone repo with your Hugging Face account, or policy loading dies with a 403.
4. Smoke-test the sim:
~/IsaacLab/isaaclab.sh -p scripts/list_envs.py
A containerized alternative (sim image + policy-server image, wired via compose)
lives under docker/.
Entry point: finetune/finetune_groot_n1.7.sh
(LeRobot lerobot-train, GrootPolicy). Run it inside the N1.7 LeRobot venv — a
preflight guard refuses to run on an N1.5 (Eagle-backbone) LeRobot build.
``
SO-101 Bench: GR00T-N1.7 Edition — Sim-Based VLA Evaluation Without the Robot — leads with the value proposition.
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