---
id: 1115
title: "GPT-5.5 vs Claude Opus 4.7 vs Sonnet 4.6: OpenAI's Frontier Cyber Model Faces Anthropic's Best on Vulnerability Validation"
source_domain: hackerone.com
source_url: "https://www.hackerone.com/blog/vulnerability-exploitability-benchmark-gpt-5-5-vs-claude"
published_at: "2026-05-06 13:19"
tags: ["ai-security", "vulnerability-management", "benchmark", "claude", "triage", "hackerone", "gpt-5-5", "vulnerability-validation", "ai-models"]
phying_url: "https://phying.com/item/1115"
lang: en
---

# GPT-5.5 vs Claude Opus 4.7 vs Sonnet 4.6: OpenAI's Frontier Cyber Model Faces Anthropic's Best on Vulnerability Validation

## Summary

HackerOne benchmarked GPT-5.5 against Claude Opus 4.7 and Sonnet 4.6 on CVE cases and real-world vulnerability reports, judging which frontier model validates exploitability with the best speed-accuracy balance.

## Intelligence Metadata

- **Sources:** hackerone.com
- **Published:** 2026-05-06 13:19
- **Original:** https://www.hackerone.com/blog/vulnerability-exploitability-benchmark-gpt-5-5-vs-claude
- **Phying News:** https://phying.com/item/1115