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richardyoung/mythos-qwen-1.5b-final-heretic

sourceHugging Faceapache-2.0updated 18h agoView on Hugging Face
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This is a decensored version of expper/mythos-qwen-1.5b-final, made using Heretic v1.4.0

[!TIP] This model is reproducible! See the README in the reproduce directory for more information.

Abliteration parameters

ParameterValue
direction_index19.94
attn.o_proj.max_weight1.27
attn.o_proj.max_weight_position17.25
attn.o_proj.min_weight0.88
attn.o_proj.min_weight_distance13.43
mlp.down_proj.max_weight1.02
mlp.down_proj.max_weight_position25.63
mlp.down_proj.min_weight0.56
mlp.down_proj.min_weight_distance16.10

Performance

MetricThis modelOriginal model ([expper/mythos-qwen-1.5b-final](https://huggingface.co/expper/mythos-qwen-1.5b-final))
KL divergence0.02340 (by definition)
Refusals2/10093/100


language:

  • —en
  • —code license: apache-2.0 tags:
  • —security
  • —exploit-development
  • —vulnerability-research
  • —php
  • —mybb
  • —cve
  • —python
  • —qwen
  • —fine-tuned
  • —cybersecurity datasets:
  • —[your-dataset-name-if-uploaded] metrics:
  • —accuracy
  • —code-eval pipelinetag: text-generation libraryname: transformers base_model: Qwen/Qwen2.5-Coder-1.5B-Instruct ---

Mythos Engine - Qwen 2.5 Coder 1.5B Security Fine-Tune

🔥 Model Description

Mythos Engine is a specialized fine-tune of Qwen 2.5 Coder 1.5B Instruct designed for cybersecurity research, vulnerability analysis, and exploit development. It has been trained on a curated dataset of 700+ high-reasoning security examples covering PHP internals, MyBB exploitation, deserialization chains, type juggling, and advanced Python exploit synthesis.

The model employs Chain-of-Thought reasoning with self-correction loops and mathematical logic notation to produce accurate, production-ready security code.

🎯 Intended Use

  • —Security Research: Analyzing CVEs and understanding exploit mechanics
  • —Red Team Education: Learning exploit development patterns
  • —Blue Team Defense: Understanding attack vectors to build better detections
  • —CTF & Training: Solving complex security challenges

⚠️ Important: This model is for educational and authorized security testing only. Do not use for unauthorized access or malicious purposes.

🧠 Training Details

AspectDetails
Base ModelQwen/Qwen2.5-Coder-1.5B-Instruct
Fine-Tuning MethodQLoRA (4-bit quantization) with Unsloth
Dataset Size1000+ examples
Epochs4
Learning Rate1e-5
Sequence Length4096
Final Training Loss2.02

📊 Dataset Composition

The training dataset includes:

  • —40% PHP Vulnerabilities: Type juggling, deserialization, filter chains, disable_functions bypasses
  • —25% MyBB Exploits: Admin CP RCE, SQL injection, XSS chains
  • —20% Python Exploit Development: C2 frameworks, scanners, injection techniques
  • —10% Blue Team Detection: Sigma/YARA rules, log analysis
  • —5% Cryptographic Attacks: Timing attacks, padding oracles, hash length extension

🚀 How to Use

python
from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained(
    "expper/mythos-qwen-1.5b-final",
    device_map="auto",
    torch_dtype="auto"
)
tokenizer = AutoTokenizer.from_pretrained("expper/mythos-qwen-1.5b-final")

prompt = """<|im_start|>system
You are Mythos Engine, an elite security AI. Think step-by-step with self-correction.<|im_end|>
<|im_start|>user
Explain CVE-2022-43772 (MyBB Admin CP Avatar RCE) and write a PoC.<|im_end|>
<|im_start|>assistant
"""

inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
outputs = model.generate(**inputs, max_new_tokens=1024, temperature=0.6)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

---

*Built & maintained by [Richard Young](https://deepneuro.ai/richard) · DeepNeuro*