GPT-5.5 vs Claude Opus 4.7 vs Sonnet 4.6: OpenAI's Frontier Cyber Model Faces Anthropic's Best on Vulnerability Validation
hackerone.com | research | #ai-security | #vulnerability-management | #benchmark | #claude | #triage | #hackerone | #gpt-5-5 | #vulnerability-validation | #ai-models
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.
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--- 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