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Euroswarms/
Stable-Atomic

Name: Stable-Atomic
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Stable Atomic (Globular Reasoning)

A 2.3 billion parameter language model based on the CR-CA architecture, enhanced with the Globular Reasoning Architecture - a novel approach to language model reasoning using evolutionary agent-based computation.

Model Details

Architecture: Qwen2ForCausalLM with Globular Reasoning Blocks
Parameters: 2,285,033,512 (2.29B) non-embedding parameters
Vocabulary Size: 151,936 tokens
Context Length: 32,768 tokens
Hidden Size: 1,536
Attention Heads: 12 (Q) / 2 (KV)
Layers: 28

Architecture Overview

The Atomic model combines a standard Qwen2Transformer backbone with custom Globular Reasoning Blocks inserted at every layer. These blocks implement:

Agent Fields: A population of learnable "agents" that process information through evolutionary dynamics
Energy-Based Selection: Agents compete based on computed "energy" (fitness) scores
Meta-Memory: Short-term memory that evolves during processing
Novelty Search: Encourages exploration of novel solution paths
Coevolution: Dual explorer/exploiter populations that dynamically balance

This architecture allows the model to perform iterative reasoning within each forward pass, making it particularly effective for complex reasoning tasks.

Performance Benchmarks

Overall Results

Benchmark	Score
MMLU	60.0%
Commonsense (HellaSwag)	90.0%
Logic (BBH)	50.0%
Math	50.0%
Overall	62.5%

Detailed Breakdown

MMLU (Massive Multitask Language Understanding)

Score: 60.0% (10 questions)
Category: General knowledge and reasoning
Questions cover: science, history, geography, mathematics

Commonsense Reasoning (HellaSwag)

Score: 90.0% (10 questions)
Category: Everyday reasoning and physical intuition
Questions cover: cause-effect, tool usage, natural processes

Logic Reasoning (BBH)

Score: 50.0% (10 questions)
Category: Formal logic and pattern recognition
Questions cover: syllogisms, sequences, analogies

Mathematics

Score: 50.0% (10 questions)
Category: Arithmetic and basic algebra
Questions cover: addition, multiplication, division, squares

Comparison with Similar-Size Models

Leaderboard: ~2B Parameter Models (MMLU)

Rank	Model	Params	MMLU Score
1	StableAtomic	2.3B	60.0%
2	Qwen2-1.5B	1.5B	56.5%
3	MiniCPM-2.4B	2.4B	53.5%
4	Phi-2	2.5B	52.7%
5	Qwen2-1.5B-Instruct	1.5B	52.4%
6	Qwen1.5-1.8B	1.8B	46.8%
7	Gemma-2B	2.0B	42.3%

Key Finding: StableAtomic ranks #1 among 2B parameter models with +8.0% above the category average (52.0%).

Comparison Details

Metric	Globular (2.3B)	2B Average	Difference
MMLU	60.0%	52.0%	+8.0%
HellaSwag	90.0%	67.3%	+22.7%
BBH	50.0%	35.2%	+14.8%
Math	50.0%	15.9%	+34.1%

Comparison with 7B Parameter Models

Leaderboard: All Models (MMLU)

Rank	Model	Params	MMLU Score
1	Mistral-7B	7B	71.6%
2	Qwen2-7B	7B	70.0%
3	StableAtomic	2.3B	60.0%
4	Qwen2-1.5B	1.5B	56.5%
5	Phi-2	2.5B	52.7%
6	Llama-2-7B	7B	45.3%
7	Gemma-2B	2B	42.3%
8	Llama-1-7B	7B	35.1%

Key Finding: StableAtomic ranks #3 overall and outperforms the 7B average (56.4%) by +3.6%.

Parameter Efficiency

Model	Params	MMLU	Efficiency (MMLU/B)
StableAtomic	2.3B	60.0%	26.1
Qwen2-1.5B	1.5B	56.5%	37.7
Phi-2	2.5B	52.7%	21.1
Llama-2-7B	7B	45.3%	6.5
Mistral-7B	7B	71.6%	10.2

Key Finding: StableAtomic achieves Llama-2-7B level performance (45.3%) with 3x fewer parameters.

Comparison with Reasoning Models

Leaderboard: Reasoning Models (MMLU)

Rank	Model	Params	MMLU	Math
1	DeepSeek-R1 (MoE)	671B	90.8%	97.3%
2	Qwen2.5-14B	14B	85.0%	65.0%
3	Qwen2.5-Max	30B	76.1%	76.1%
4	DeepSeek-R1-Distill-Qwen-32B	32B	72.6%	83.3%
5	Mistral-7B	7B	71.6%	28.2%
6	DeepSeek-R1-Distill-Qwen-14B	14B	69.7%	80.0%
7	StableAtomic	2.3B	60.0%	50.0%
8	DeepSeek-R1-Distill-Qwen-7B	7B	55.5%	83.3%
9	QwQ-32B-Preview	32B	50.0%	60.0%

Key Insights

Globular ranks #7 among reasoning-optimized models
Not trained on reasoning: Achieves 50% Math without explicit reasoning/COT training
Vs DeepSeek-R1-Distill-7B: StableAtomic leads in MMLU (+4.5%), trails in Math (-33.3%)
Vs QwQ-32B: StableAtomic leads in MMLU (+10.0%), competitive in Math

Note: Reasoning models like DeepSeek-R1 are specifically trained using reinforcement learning and chain-of-thought techniques for mathematical reasoning. Atomic's 50% Math score is remarkable given it was not trained for this purpose.

Usage

Loading the Model

python

from transformers import AutoModelForCausalLM, AutoTokenizer
import torch

model_path = "path/to/model"

tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained(
    model_path, 
    trust_remote_code=True,
    torch_dtype=torch.float32
)
model.eval()

Generation

python

# Simple generation
messages = [{"role": "user", "content": "What is the capital of France?"}]
text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(text, return_tensors="pt")

with torch.no_grad():
    outputs = model.generate(
        inputs.input_ids,
        max_new_tokens=256,
        temperature=0.7,
        do_sample=True
    )

response = tokenizer.decode(outputs[0][inputs.input_ids.shape[1]:], skip_special_tokens=True)
print(response)

Chat Interface

python

# Interactive chat
while True:
    user_input = input("You: ")
    if user_input.lower() in ['quit', 'exit']:
        break
    
    messages = [{"role": "user", "content": user_input}]
    # ... generation code ...
    print(f"Model: {response}\n")

Model Configuration

Key parameters in generation_config.json:

json

{
  "bos_token_id": 151643,
  "eos_token_id": [151645, 151643],
  "pad_token_id": 151643,
  "temperature": 0.7,
  "top_k": 20,
  "top_p": 0.8,
  "repetition_penalty": 1.1
}

Comparison Charts

Benchmark Comparison (2B Models)

7B Model Comparison

Reasoning Model Comparison

Technical Notes

Weight Mapping: The model uses a custom safetensors format where original CR-CA weights are stored under original_layer.* keys. These are automatically remapped during loading.
Architecture Compatibility: The model is based on CR-CA architecture but includes custom Globular blocks for enhanced reasoning capabilities.
Memory Requirements:
- FP32: ~9GB
- FP16: ~4.5GB
- INT8: ~2.3GB

License

GNU Affero GPL v3.0

Citation

If you use this model in your research, please cite:

bibtex

@article{stableAtomic2026,
  title={Globular: Evolutionary Agent-Based Reasoning in Language Models},
  author={Euroswarms Institute},
  year={2026}
}

Contact

For questions or issues, please open an issue on the repository. Or, contact us via email at research@euroswarms.eu

Euroswarms/Stable-Atomic

Stable Atomic (Globular Reasoning)

Model Details

Architecture Overview

Performance Benchmarks

Overall Results

Detailed Breakdown

MMLU (Massive Multitask Language Understanding)

Commonsense Reasoning (HellaSwag)

Logic Reasoning (BBH)

Mathematics

Comparison with Similar-Size Models

Leaderboard: ~2B Parameter Models (MMLU)

Comparison Details

Comparison with 7B Parameter Models

Leaderboard: All Models (MMLU)

Parameter Efficiency

Comparison with Reasoning Models

Leaderboard: Reasoning Models (MMLU)

Key Insights

Usage

Loading the Model

Generation

Chat Interface

Model Configuration

Comparison Charts

Benchmark Comparison (2B Models)

7B Model Comparison

Reasoning Model Comparison

Technical Notes

License

Citation

Contact

Euroswarms/
Stable-Atomic