Phi-3-Small | NVIDIA NeMo AutoModel

Phi-3-Small is Microsoft’s 7B model using a distinct Phi3SmallForCausalLM architecture with blocksparse attention, separate from the standard Phi-3 family.


Task	Text Generation
Architecture	`Phi3SmallForCausalLM`
Parameters	7B
HF Org	microsoft

Available Models

Phi-3-small-8k-instruct: 7B, 8K context
Phi-3-small-128k-instruct: 7B, 128K context

Architecture

Phi3SmallForCausalLM

Example HF Models

Model	HF ID
Phi-3-small-8k-instruct	`microsoft/Phi-3-small-8k-instruct`
Phi-3-small-128k-instruct	`microsoft/Phi-3-small-128k-instruct`

Try with NeMo AutoModel

Install NeMo AutoModel and follow the fine-tuning guide to configure a recipe for this model.

1. Install (full instructions):

pip install nemo-automodel

2. Clone the repo to get example recipes you can adapt:

git clone https://github.com/NVIDIA-NeMo/Automodel.git
cd Automodel

3. Fine-tune by adapting a base LLM recipe — override the model ID on the CLI:

automodel --nproc-per-node=8 examples/llm_finetune/llama3_2/llama3_2_1b_squad.yaml \
  --model.pretrained_model_name_or_path <MODEL_HF_ID>

Replace <MODEL_HF_ID> with the model ID from Example HF Models above.

Run with Docker

1. Pull the container and mount a checkpoint directory:

docker run --gpus all -it --rm \
  --shm-size=8g \
  -v $(pwd)/checkpoints:/opt/Automodel/checkpoints \
  nvcr.io/nvidia/nemo-automodel:26.06.00

2. The recipes are at /opt/Automodel/examples/ — navigate there:

cd /opt/Automodel

3. Fine-tune:

automodel --nproc-per-node=8 examples/llm_finetune/llama3_2/llama3_2_1b_squad.yaml \
  --model.pretrained_model_name_or_path <MODEL_HF_ID>

See the Installation Guide and LLM Fine-Tuning Guide.

Fine-Tuning

See the LLM Fine-Tuning Guide.