Control model — Qwen2.5-1.5B fine-tuned with all training data in a single pass (no phases, no pruning). Serves as the baseline for evaluating progressive training.

📊 Results

Metric	Score
Composite Score	79.2
Exact Accuracy	56.9% ± 6.4
Adversarial Robustness	81.3% ± 2.3
Delegation Accuracy	100.0% ± 0.0
Delegation Rate	58.7% ± 4.6
Magnitude Sense (OoM±1)	100.0% ± 0.0
Catastrophic Errors	0.0% ± 0.0

Results: mean ± std over 3 seeds (42, 43, 44), 50 samples × 5 dimensions per seed.

⚖️ Comparison with Dream LoRA

Metric	Flat (this)	Dream	Delta
Composite	79.2	87.6	+8.4
Exact Accuracy	56.9%	69.4%	+12.5pp
Delegation Rate	58.7%	100.0%	+41.3pp
Number Sense	6.7%	60.7%	+54.0pp

The Dream model shows significantly stronger delegation and number sense, demonstrating that progressive training + SVD pruning adds cognitive capabilities beyond what flat training provides.

🔧 Training Configuration

Parameter	Value
Base Model	Qwen/Qwen2.5-1.5B
LoRA Rank	16
LoRA Alpha	32
LoRA Targets	q_proj, k_proj, v_proj, o_proj, gate_proj, up_proj, down_proj
Dropout	0.05
Training Data	~6,000 English arithmetic examples (all mixed in one pass)
Hardware	NVIDIA T4 16GB

🚀 Quick Start

python

from transformers import AutoModelForCausalLM, AutoTokenizer
from peft import PeftModel

base_model = AutoModelForCausalLM.from_pretrained(
    "Qwen/Qwen2.5-1.5B", device_map="auto", torch_dtype="auto"
)
tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen2.5-1.5B")

model = PeftModel.from_pretrained(
    base_model,
    "dexmac/progressive-cognitive-baseline-lora-en"
)

messages = [{"role": "user", "content": "Calculate: 342 * 67"}]
text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tokenizer(text, return_tensors="pt").to(model.device)
outputs = model.generate(**inputs, max_new_tokens=200, temperature=0.1)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

🔗 Related Models

1.5B Dream LoRA — Progressive training + Dream Pruning (best model)
3B Flat — Same approach on Qwen2.5-3B
Results Dataset — Raw evaluation data
GitHub — Full source code

📝 Citation

bibtex

@software{progressive_cognitive_2026,
  author = {Dex Mac},
  title = {Progressive Cognitive Architecture for LLMs},
  year = {2026},
  url = {https://github.com/dexmac221/progressive-cognitive},
  version = {1.0.0}
}

📄 License

Apache 2.0