Instructions to use GGUFGuy/nanodex-500k-200m with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use GGUFGuy/nanodex-500k-200m with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="GGUFGuy/nanodex-500k-200m")

# pip install -U transformers accelerate
# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("GGUFGuy/nanodex-500k-200m")
model = AutoModelForCausalLM.from_pretrained("GGUFGuy/nanodex-500k-200m", device_map="auto")

Notebooks
Google Colab
Kaggle
Local Apps Settings

vLLM

How to use GGUFGuy/nanodex-500k-200m with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "GGUFGuy/nanodex-500k-200m"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "GGUFGuy/nanodex-500k-200m",
		"prompt": "Once upon a time,",
		"max_tokens": 512,
		"temperature": 0.5
	}'

Use Docker

docker model run hf.co/GGUFGuy/nanodex-500k-200m

SGLang

How to use GGUFGuy/nanodex-500k-200m with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "GGUFGuy/nanodex-500k-200m" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "GGUFGuy/nanodex-500k-200m",
		"prompt": "Once upon a time,",
		"max_tokens": 512,
		"temperature": 0.5
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "GGUFGuy/nanodex-500k-200m" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "GGUFGuy/nanodex-500k-200m",
		"prompt": "Once upon a time,",
		"max_tokens": 512,
		"temperature": 0.5
	}'

Docker Model Runner
How to use GGUFGuy/nanodex-500k-200m with Docker Model Runner:
```
docker model run hf.co/GGUFGuy/nanodex-500k-200m
```

nanodex-500k-200m

A 492,192-parameter decoder-only language model pre-trained from scratch on fineweb-edu, using the NanoDex Trainer Space.

Architecture

A standard LlamaForCausalLM decoder-only transformer — SiLU MLP, RMSNorm, rotary position embeddings, grouped-query attention, tied embeddings, no biases — scaled down in width and depth to fit the parameter budget.


Parameters	492,192
Hidden size	96
Layers	3
Attention heads	6 (KV: 2)
FFN size	256
Context length	512
Vocab	2,048 (custom BPE trained on fineweb-edu)

Training


Tokens seen	199,884,800
Steps	1,525
Tokens / step	131,072
Optimizer	AdamW(0.9, 0.95) wd=0.1 clip=1.0
LR schedule	warmup 2% + cosine to 10% (peak 4e-03)
Final loss	3.8150 (ppl 45.4)
Wall time	4.5 min
Trained by	@GGUFGuy

Usage

from transformers import AutoModelForCausalLM, AutoTokenizer

tok = AutoTokenizer.from_pretrained("GGUFGuy/nanodex-500k-200m")
model = AutoModelForCausalLM.from_pretrained("GGUFGuy/nanodex-500k-200m")

ids = tok("The mitochondria is", return_tensors="pt").input_ids
print(tok.decode(model.generate(ids, max_new_tokens=60, do_sample=True,
                                temperature=0.8, top_k=50)[0]))

Caveats

This is a nano-scale research artifact. At this parameter count and token budget the model learns word shapes, common collocations and a little syntax — it is not a useful assistant and its output is not factual. It exists to make "pre-train a transformer from scratch" something you can actually watch happen.

Downloads last month: 17

Safetensors

Model size

492k params

Tensor type

F32

GGUFGuy
/

nanodex-500k-200m

nanodex-500k-200m

Architecture

Training

Usage

Caveats

Dataset used to train GGUFGuy/nanodex-500k-200m