OpenAI expands Daybreak with GPT-5.6-Cyber

DALLAS, June 22, 2026 /PRNewswire/ -- TrendAI™ (TYO: 4704; TSE: 4704), today announced it has joined the OpenAI Daybreak Cyber Partner Program – gaining access to OpenAI's frontier AI capabilities purpose-built for cybersecurity. TrendAI™ is among the first cybersecurity vendors selected as OpenAI expands Daybreak from internal testing to a curated group of trusted defenders, reflecting TrendAI™'s three-decade track record at the forefront of global threat intelligence. TrendAI

Daybreak is built to accelerate that full remediation loop, working with the world’s leading cyber organizations as partners to bring trusted defensive capability into the tools, services, and workflows security teams already rely on. Through Codex Security, Patch the Planet, GPT‑5.5‑Cyber, and the Daybreak Cyber Partner Program, developers, maintainers, researchers, enterprises, and public institutions can turn frontier AI capability into measurable risk reduction. [...] This work has to happen responsibly. Daybreak is designed around authorization, human judgment, monitoring, safeguards, and collaboration with the broader security community. Advanced access is available for verified defenders through Trusted Access for Cyber, pairing more capable and permissive defensive tools with stronger verification, scope controls, and oversight. ## Deploy frontier cyber intelligence with Codex and the @CodexSecurity plugin ## Ways to get started #### Start a scan with the @CodexSecurity plug

GPT‑5.6 supports important defensive tasks such as secure code review, patching, threat modeling, and blue teaming. Qualified individuals and organizations in OpenAI Daybreak’s Trusted Access for Cyber⁠ program can access more of its defensive capability through more precise safeguards for verified work in authorized environments, including vulnerability triage and validation, malware analysis, detection engineering, and patch validation. [...] 2026 ## Author OpenAI ## Footnotes 1. 1 Cyber capabilities are evaluated with reduced safeguards. Users can join OpenAI Daybreak’s Trusted Access for Cyber program⁠ for increased access to defensive cyber capabilities. Security & Privacy Trust & Transparency Products ChatGPT(opens in a new window) ChatGPT Business(opens in a new window) ChatGPT Enterprise(opens in a new window) ChatGPT for Education(opens in a new window) Codex Release Notes API Platform Overview API Log In(opens in a new window) Docs(op

> > Frontier defensive capabilities should not be concentrated in the hands of a few. Software touches all aspects of life, from critical infrastructure to business applications and government networks. As AI changes the pace of vulnerability discovery, defenders everywhere need democratized access to these models to find, fix, and protect their infrastructure before attackers can identify and abuse these flaws." [...] OpenAI Daybreak What Daybreak is hoping to do is speed up cybersecurity and make it more real-time. OpenAI said: [...] Customer Stories These enterprises are making big waves with technology use cases. # OpenAI expands Daybreak program, updates GPT-5.5-Cyber, lands partners Published June 22, 2026 Copy link Link Copied Copied to clipboard OpenAI rolled out an updated GPT-5.5-Cyber model, launched an initiative to patch vulnerabilities and rolled out a partner program as it expanded its Daybreak cybersecurity initiative. The OpenAI moves come as Anthropic's Fable

We’re expanding OpenAI Daybreak to help democratize patching vulnerable software at machine speed: - Codex Security plugin: find, validate, and fix vulnerabilities right inside Codex - The full version of GPT-5.5-Cyber model: a strong model for trusted defenders - Cyber Partner Program: powering products built on top of our best cyber capabilities for 20+ leading security companies to secure the world's software - Patch the Planet: working with maintainers to secure critical open source projects With an update to GPT‑5.5‑Cyber, it’s now more permissive and more capable for advanced, authorized cybersecurity work. It is our most capable cyber model yet, with stronger performance on defensive workflows like tracing vulnerable code, validating issues, developing patches, and preparing [...] AMG Innovative 7h Report this comment An important evolution in cybersecurity. Moving from vulnerability detection to automated validation and patching can significantly improve software resilien

Earlier this month, the company expanded its Daybreak program by introducing GPT-5.5-Cyber for trusted defenders while broadening partnerships across the cybersecurity industry. OpenAI also launched Patch the Planet, an initiative developed with security firm Trail of Bits that aims to accelerate vulnerability remediation within open-source software projects. Together, these programs reflect a broader strategy focused on helping security professionals identify and repair software vulnerabilities before attackers can exploit them. ### Industry Competition Intensifies OpenAI's release also arrives amid increasing competition among frontier AI developers. [...] The launch represents one of the most significant AI releases of 2026, not only because of the technical improvements over GPT-5.5, but also because it highlights an emerging regulatory model in which frontier AI systems undergo additional government scrutiny before reaching widespread commercial availability. ### Three Models