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UCSB-SURFIDecember 8, 2025

VulnLLM-R-7B

Open Source
LLM
LLMs
Security

Explore VulnLLM-R-7B

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### TL;DR

VulnLLM-R-7B is a specialized reasoning Large Language Model (LLM) designed for software vulnerability detection. Unlike traditional static analysis tools that rely on pattern matching, VulnLLM-R-7B employs a 'Chain-of-Thought' approach to analyze program states and identify potential vulnerabilities, enhancing generalizability and preventing learning shortcuts.

Key Insights & Metrics

Pricing
Free
Cost structure
Version
1.0
Current release version
Hardware
NVIDIA A100 GPU, 8GB RAM
Compute requirements
Category
Open Source
Licensing model
Region
United States
Primary region

Key Features

  • Reasoning-Based Detection: Generates a 'Chain-of-Thought' to analyze why a vulnerability exists.
  • Superior Accuracy: Outperforms commercial models like Claude-3.7-Sonnet and industry-standard tools such as CodeQL and AFL++ on key benchmarks.
  • Efficiency: Achieves state-of-the-art performance with only 7 billion parameters, making it 30 times smaller and significantly faster than general-purpose reasoning models.
  • Broad Coverage: Trained and tested on C, C++, Python, and Java, demonstrating zero-shot generalization across these languages.

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