What makes it interesting
- Tiny and fast: practical for local inference and rapid prototyping
- Native ChatML format: structured user/assistant conversations
- Hugging Face + GGUF exports: works with Transformers and llama.cpp-compatible tools
- Open experiment: trained and evaluated on a single consumer GPU
Model details
- Architecture: GPT-style causal language model
- Parameters: approximately 124M
- Layers: 12
- Hidden size: 768
- Attention heads: 12
- Context length: 1,024 tokens
- Vocabulary: GPT-2 BPE plus ChatML control tokens
- Final pretraining: 45,000 steps, approximately 15 tokens per parameter
- Released checkpoint: deterministic v2, step 2,000 of targeted post-training
Quick start
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch
model_id = "YOUR_USERNAME/aurora-one-mini-124m"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id)
prompt = "What is the capital of France?"
messages = [{"role": "user", "content": prompt}]
text = tokenizer.apply_chat_template(
messages, tokenize=False, add_generation_prompt=True
)
inputs = tokenizer(text, return_tensors="pt")
with torch.no_grad():
output = model.generate(
**inputs,
max_new_tokens=80,
temperature=0.7,
top_p=0.9,
do_sample=True,
)
print(tokenizer.decode(output[0], skip_special_tokens=True))
GGUF files
The companion GGUF files are provided for local runtimes:
aurora_one_mini_deterministic_v2_f16.gguf — highest fidelity
aurora_one_mini_deterministic_v2_q4_k_m.gguf — compact CPU-friendly quantization
Use the Q4_K_M file for a fast, low-memory demo. Use the F16 file when preserving maximum quality is more important.
Honest limitations
This is an experimental 124M model, not a frontier assistant. It can produce fluent short responses, but it may hallucinate, repeat itself, or answer arithmetic and factual questions incorrectly. For dependable applications, pair it with a calculator, retrieval system, memory layer, and explicit output validation.
The native-ChatML factual smoke test scored 3/20 on a small internal suite. This score is reported to set realistic expectations and should not be interpreted as a general benchmark.
Intended use
Good fits include:
- local chat experiments
- educational model training projects
- embedded or low-resource inference
- prompt-format and agent-runtime experiments
- fast prototyping with Transformers or llama.cpp
Avoid using it as the sole source of truth for medical, legal, financial, safety-critical, or factual decision-making.
The model was post-trained using ChatML-style turns:
<|im_start|><|user|>Your question<|im_end|>
<|im_start|><|assistant|>
The included tokenizer metadata contains the required special tokens.
Acknowledgements
Aurora One Mini was trained as a small-scale independent experiment using PyTorch and a consumer NVIDIA GPU. Contributions, evaluations, and improvements are welcome.
License
Released for research and experimentation. Add the project’s final license here before redistributing commercially.