ContextQMD
Back to Transformers

NemotronH

docs/source/en/model_doc/nemotron_h.md

5.8.02.6 KB
Original Source
<!--Copyright 2026 The HuggingFace Team. All rights reserved. Copyright (c) 2026, NVIDIA CORPORATION. All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ⚠️ Note that this file is in Markdown but contain specific syntax for our doc-builder (similar to MDX) that may not be rendered properly in your Markdown viewer. -->

This model was released on 2025-12-15 and added to Hugging Face Transformers on 2026-03-02.

<div style="float: right;"> <div class="flex flex-wrap space-x-1"> 
</div>
</div>

NemotronH

NemotronH is a hybrid architecture combining attention and state-space layers for efficient long-context language modeling. It interleaves Mamba2 and transformer blocks, using a fixed ratio to balance expressiveness with linear-time sequence processing.

The example below demonstrates how to generate text with [Pipeline] or the [AutoModelForCausalLM] class.

<hfoptions id="usage"> <hfoption id="Pipeline">
python
from transformers import pipeline


pipe = pipeline(
    task="text-generation",
    model="nvidia/Nemotron-H-8B-Reasoning-128K",
)
pipe("Plants create energy through a process known as")
</hfoption> <hfoption id="AutoModelForCausalLM">
python
from transformers import AutoModelForCausalLM, AutoTokenizer


tokenizer = AutoTokenizer.from_pretrained("nvidia/Nemotron-H-8B-Reasoning-128K")
model = AutoModelForCausalLM.from_pretrained(
    "nvidia/Nemotron-H-8B-Reasoning-128K",
    device_map="auto",
)
input_ids = tokenizer("Plants create energy through a process known as", return_tensors="pt").to(model.device)

output = model.generate(**input_ids, max_new_tokens=50)
print(tokenizer.decode(output[0], skip_special_tokens=True))
</hfoption> </hfoptions>

NemotronHConfig

[[autodoc]] NemotronHConfig

NemotronHModel

[[autodoc]] NemotronHModel - forward

NemotronHForCausalLM

[[autodoc]] NemotronHForCausalLM - forward