Atlas-2-Small

Atlas-2-Small

Experimental 2B-parameter language model from AeroAI for aviation question answering and chatbot-style queries.

Status Params

Overview

Atlas-2-Small is the compact, experimental member of the Atlas-2 family. It is built for aviation Q&A and conversational use, and is small enough to run locally on consumer hardware.

Model Role Status
Atlas-2-Core Fast, basic model In development
Atlas-2-Pro High-end thinking model In development
Atlas-2-Small Experimental 2B chatbot model Experimental

Intended Use

  • Aviation question answering (general knowledge, regulations, procedures, terminology)
  • Chatbot-style conversational queries
  • Local experimentation, research, and prototyping

Limitations and Safety

Not for operational use. Atlas-2-Small is experimental and may produce incorrect, outdated, or fabricated answers.

  • Do not use it for flight planning, navigation, aircraft maintenance, or any safety-critical decision.
  • Always verify against official sources: FAA publications (14 CFR, AIM, POH/AFM), NOTAMs, and certified instructors.
  • Calculations (fuel, weight and balance, performance) must be independently checked.
  • Small models may hallucinate, particularly on numeric and regulatory detail.

Quick Start

Replace AeroAI/Atlas-2-Small with the actual repository or model path once published.

Requirements

pip install -U transformers torch accelerate

Python (Transformers)

from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "AeroAI/Atlas-2-Small"
tok = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(model_id, device_map="auto")

messages = [{"role": "user", "content": "What does VFR stand for, and what are basic VFR weather minimums in Class E airspace below 10,000 ft MSL?"}]
inputs = tok.apply_chat_template(messages, add_generation_prompt=True, return_tensors="pt").to(model.device)
out = model.generate(inputs, max_new_tokens=256, temperature=0.7, do_sample=True)
print(tok.decode(out[0][inputs.shape[-1]:], skip_special_tokens=True))

Apple Silicon (MLX)

pip install -U mlx-lm
mlx_lm.generate --model AeroAI/Atlas-2-Small --prompt "Explain density altitude." --max-tokens 256

Model Details

Field Value
Developer AeroAI
Family Atlas-2
Parameters 2B
Type Causal language model (chat)
Domain Aviation
Input / Output Text / Text
Context length 260,000
Training data Proprietary + Distillation
Fine-tuning method LoRa + FFT
License TBD

Evaluation

Benchmark results (e.g., AvBench) will be added here.

Benchmark Score
AvBench TBD

System Prompt

See |systemprompt.txt| file under "Files and Versions" tab.

Citation

@misc{aeroai_atlas2small,
  title  = {Atlas-2-Small: An Experimental Aviation Chatbot Model},
  author = {{AeroAI}},
  year   = {2026}
}

Contact/Support

AeroAI - aeroaiaviation@icloud.com

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