Isaac GR00T N1 / N1.5 / N1.6
N1 (2B) announced 2025-03-18; N1.5 (3B) mid-2025; N1.6 (3B) later in 2025 - exact N1.5/N1.6 dates not re-verified. Superseded by GR00T N1.7 (2026). 'first' is NVIDIA's claim (open weights for a humanoid-specific generalist model; earlier open VLAs such as OpenVLA/Octo targeted arms).
- Input
- text, image
- Output
- action
- License
- NVIDIA license (see each Hugging Face model card; N1.6 card lists a non-commercial license)
- Verified
- 2026-09-29
How to call it
| Provider | Model id | Endpoint / URL | Docs |
|---|---|---|---|
| Hugging Face | nvidia/GR00T-N1-2B | huggingface.co/nvidia/GR00T-N1-2B | — |
| Hugging Face | nvidia/GR00T-N1.5-3B | huggingface.co/nvidia/GR00T-N1.5-3B | — |
| Hugging Face | nvidia/GR00T-N1.6-3B | huggingface.co/nvidia/GR00T-N1.6-3B | — |
| GitHub (branches n1d5, n1d6) | — | github.com/NVIDIA/Isaac-GR00T | — |
Notable capabilities (1)
- FIRST Open humanoid robot foundation model: Announced at GTC 2025 as 'the world's first open humanoid robot foundation model': a dual-system VLA (VLM 'System 2' + diffusion-transformer 'System 1') for cross-embodiment humanoid control, customizable with synthetic data. source
Sources: NVIDIA newsroom (GR00T N1), Isaac-GR00T GitHub.
Other NVIDIA models
NVIDIA Nemotron 3.5 Lightning (30B-A3B) · NVIDIA NemotronLabs VoiceChat 11B (and PersonaPlex-7B) · NVIDIA Nemotron 3 Ultra (550B-A55B) · Cosmos 3 (Nano / Super) · NVIDIA Nemotron 3 Nano Omni (30B-A3B Reasoning) · Isaac GR00T N1.7 · NVIDIA Nemotron 3 Super (120B-A12B) · Cosmos Reason 2 · NVIDIA MagpieTTS Multilingual 357M · NVIDIA Parakeet / Canary / Nemotron Speech ASR (open) · Isaac GR00T N2 · Cosmos Predict 2.5 / Transfer 2.5