HackerOne Makes OpenAI GPT Cyber Models Available in the H1 Platform to Turn Security Findings Into Faster Fixes

Partnership makes OpenAI’s frontier cyber capabilities available for vulnerability discovery, validation, and remediation in the H1 Platform

SAN FRANCISCO, Sept. 3, 2026 – HackerOne, a global leader in Continuous Threat Exposure Management (CTEM), today announced a partnership with OpenAI to make frontier GPT cyber models available in select H1 Platform products, H1 Code Security Audit, H1 Code, and H1 Remediation, to help teams find and fix vulnerabilities faster. GPT cyber models use is optional and enabled by the customer.

The partnership addresses a growing challenge facing security leaders applying increasingly capable AI across the exposure management lifecycle to find vulnerabilities and exposures, validate which ones pose real risk, and help teams prioritize and remediate them. As frontier AI increases the speed and depth of discovery, the H1 Platform helps organizations turn that capability into measurable risk reduction.

“AI is making complex attack paths increasingly discoverable, changing the risk calculation for every security leader,” said Kara Sprague, Chief Executive Officer at HackerOne. “Defenders have to assume that if an exposure exists, it will be found, and act before attackers do. That means building security programs that continuously discover, validate, and eliminate risk, so organizations can move from reacting to threats to staying ahead of them.”

Addressing that new risk requires connecting expanded discovery capabilities to the rest of the security lifecycle.

“Frontier AI can significantly expand what defenders can discover, but findings must still be validated, prioritized, and translated into action,” said Nidhi Aggarwal, Chief Product Officer at HackerOne. “The H1 Platform can put frontier AI to work across the security lifecycle, finding and validating the exposures that pose real risk, tracing them to root cause, and giving teams a clear path to remediation.”

The H1 Platform multi-model harness can use OpenAI’s frontier cyber models through the Daybreak Defense Network to broaden coverage, validate outputs, and trace findings to root cause. Security teams receive each finding with a developer-ready fix plan designed to cut overall time to remediate.

Frontier cyber AI is one layer of coverage. An elite community of security researchers provides another, bringing creativity, contextual understanding, and real-world adversarial expertise to complex attack chains, business logic flaws, and novel exploitation paths. Together, frontier cyber AI and human expertise provide complementary layers of continuous security. 

HackerOne does not use or permit use of confidential researcher submissions or customer vulnerability data to train, fine-tune, or otherwise improve generative AI models.

The partnership builds on HackerOne and OpenAI’s work to strengthen cyber defense. HackerOne recently signed OpenAI’s “A call for collective action on cyber defense,” an open letter from organizations around the world calling for collective action to expand access to advanced defensive capabilities, share practical security expertise, and accelerate verified fixes. HackerOne is also a launch partner in Patch the Planet, an OpenAI initiative focused on using AI-assisted security research and human expertise to identify and remediate vulnerabilities in critical open-source software.

To learn how frontier cyber AI is transforming Continuous Threat Exposure Management, register for our upcoming webinar, Outpacing the Attacker, on Friday, September 11, 2026, at 1:30 p.m. ET.

About HackerOne:

HackerOne is a global leader in Continuous Threat Exposure Management (CTEM) and the only solution provider that pairs the simultaneous trust of the Fortune 500 and the world's largest community of security researchers to secure the AI-native enterprise. The H1 Platform unites agentic AI solutions with security researchers' ingenuity to continuously discover, validate, prioritize, and remediate exposures across code, cloud, and AI systems. Through solutions such as agentic and human offensive security testing, AI red teaming, code security, validation, and remediation, HackerOne delivers measurable, continuous reduction of cyber risk for enterprises. Industry leaders, including Anthropic, Crypto.com, General Motors, Goldman Sachs, Lufthansa, Uber, UK Ministry of Defence, and the U.S. Department of Defense, trust HackerOne to safeguard their digital ecosystems. HackerOne was recognized in Gartner’s Emerging Tech Impact Radar: AI Cybersecurity Ecosystem report for its leadership in AI Security Testing.