---
license: apache-2.0
base_model: openai/gpt-oss-20b
tags:
- cybersecurity
- security
- gpt-oss
- openai
- fine-tuned
- merged
- text-generation
- moe
datasets:
- Trendyol/Trendyol-Cybersecurity-Instruction-Tuning-Dataset
- AlicanKiraz0/Cybersecurity-Dataset-Fenrir-v2.0
- trendmicro-ailab/Primus-Instruct
language:
- en
pipeline_tag: text-generation
library_name: transformers
inference: true
---

# GPT-OSS-Cybersecurity-20B-Merged

Fine-tuned **openai/gpt-oss-20b** (21B total params, 3.6B active - MoE) specialized for **cybersecurity** tasks.
This is a merged model (LoRA weights merged into base) for easy deployment.

## Model Description

GPT-OSS-20B is a Mixture of Experts (MoE) model with efficient inference.
- **Total Parameters**: 21B
- **Active Parameters**: 3.6B (only active experts used per token)
- **Architecture**: MoE (Mixture of Experts)

This model was trained on ~50,000 cybersecurity instruction-response pairs from:
- Trendyol Cybersecurity Dataset (35K samples)
- Fenrir v2.0 Dataset (12K samples)
- Primus-Instruct (3x upsampled)

## Training Details

| Parameter | Value |
|-----------|-------|
| Base Model | openai/gpt-oss-20b |
| Architecture | MoE (21B total, 3.6B active) |
| Training Samples | ~50,000 |
| Epochs | 2 |
| LoRA Rank | 16 |
| LoRA Alpha | 32 |
| Learning Rate | 2e-4 |
| Max Sequence Length | 1024 |

## Usage

```python
from transformers import AutoModelForCausalLM, AutoTokenizer
import torch

model = AutoModelForCausalLM.from_pretrained(
    "sainikhiljuluri2015/GPT-OSS-Cybersecurity-20B-Merged",
    torch_dtype=torch.bfloat16,
    device_map="auto",
    trust_remote_code=True
)
tokenizer = AutoTokenizer.from_pretrained("sainikhiljuluri2015/GPT-OSS-Cybersecurity-20B-Merged", trust_remote_code=True)

prompt = "What are the indicators of a ransomware attack?"
inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
outputs = model.generate(**inputs, max_new_tokens=256, temperature=0.7)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))
```

## API Usage

```python
import requests

API_URL = "https://YOUR_ENDPOINT_URL/v1/chat/completions"

response = requests.post(API_URL, json={
    "model": "sainikhiljuluri2015/GPT-OSS-Cybersecurity-20B-Merged",
    "messages": [{"role": "user", "content": "What is SQL injection?"}],
    "max_tokens": 300
})
print(response.json()["choices"][0]["message"]["content"])
```

## Cybersecurity Capabilities

- 🔍 Threat analysis and classification
- 🚨 Security alert triage
- 📋 Incident response guidance
- 🦠 Malware analysis
- 📊 MITRE ATT&CK mapping
- 🔐 Vulnerability assessment
- 💉 SQL injection detection
- 🎣 Phishing analysis
- 🔑 CVE knowledge
- 🛡️ Security best practices

## Hardware Requirements

Due to the 21B parameter size (MoE), recommended:
- **GPU**: A100 40GB+ or equivalent
- **VRAM**: 40GB+ for BF16 inference
- For smaller GPUs, use 4-bit quantization