{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/gr00t-n1/","md":"https://postcutoff.com/m/gr00t-n1/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"gr00t-n1","name":"Isaac GR00T N1 / N1.5 / N1.6","org":"NVIDIA","family":"Isaac GR00T","released":"2025-03-18","status":"legacy","type":"robotics","modality_in":["text","image"],"modality_out":["action"],"open_weights":true,"model_license":"NVIDIA license (see each Hugging Face model card; N1.6 card lists a non-commercial license)","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":null,"price_line":"Price not published","access":[{"provider":"Hugging Face","model_id":"nvidia/GR00T-N1-2B","url":"https://huggingface.co/nvidia/GR00T-N1-2B"},{"provider":"Hugging Face","model_id":"nvidia/GR00T-N1.5-3B","url":"https://huggingface.co/nvidia/GR00T-N1.5-3B"},{"provider":"Hugging Face","model_id":"nvidia/GR00T-N1.6-3B","url":"https://huggingface.co/nvidia/GR00T-N1.6-3B"},{"provider":"GitHub (branches n1d5, n1d6)","url":"https://github.com/NVIDIA/Isaac-GR00T"}],"capabilities":[{"name":"Open humanoid robot foundation model","detail":"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.","first":true,"discovered":"launch","source":"https://nvidianews.nvidia.com/news/nvidia-isaac-gr00t-n1-open-humanoid-robot-foundation-model-simulation-frameworks"}],"entry":null,"notes":"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 Superseded by GR00T N1.7 (2026).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).","verified":"2026-09-29","body_md":"Sources: [NVIDIA newsroom (GR00T N1)](https://nvidianews.nvidia.com/news/nvidia-isaac-gr00t-n1-open-humanoid-robot-foundation-model-simulation-frameworks), [Isaac-GR00T GitHub](https://github.com/NVIDIA/Isaac-GR00T).","page_url":"https://postcutoff.com/m/gr00t-n1/","standing":{"kind":"robotics","newer_count":27,"newer":[{"id":"praxis-1","name":"Praxis-1","org":"Runway","released":"2026-09-30","page_url":"https://postcutoff.com/m/praxis-1/"},{"id":"figure-helix-2-5","name":"Helix 2.5","org":"Figure AI","released":"2026-09-17","page_url":"https://postcutoff.com/m/figure-helix-2-5/"},{"id":"unifolm-wla-1-0","name":"UnifoLM-WLA-1.0","org":"Unitree Robotics","released":"2026-09-10","page_url":"https://postcutoff.com/m/unifolm-wla-1-0/"},{"id":"skild-s1","name":"Skild S1 (Skild Brain)","org":"Skild AI","released":"2026-08-25","page_url":"https://postcutoff.com/m/skild-s1/"},{"id":"generalist-gen-1-5","name":"Generalist GEN-1.5","org":"Generalist AI","released":"2026-08-19","page_url":"https://postcutoff.com/m/generalist-gen-1-5/"}],"before":null,"after":{"id":"gr00t-n2","name":"Isaac GR00T N2","org":"NVIDIA","released":"2026-03-16","page_url":"https://postcutoff.com/m/gr00t-n2/"},"weights":"public","licence":"NVIDIA license (see each Hugging Face model card; N1.6 card lists a non-commercial license)","licence_permissive":false,"summary":"Weights are public. Licence: NVIDIA license. See the licence for commercial terms."}}